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NOAA/NGDC
WDC MGG Seafloor Series Vol I

Core Data from the Deep Sea Drilling Project


Leg : 31    Top/Bot Interval(mm):  140/ 150  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   117.00   Group Abund: FEW
Core:   2   Depth Top Sample(m) :   117.64
Sect:  1    No. Observed Fossils:    46      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACHNANTHES LANCEOLATA (RARE/)
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS DIVISUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS DISCULUS (RARE/)
  COCCONEIS MAXIMA (RARE/)
  COCCONEIS PELLUCIDA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS FASCICULATA (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  CYMBELLA PARVA (RARE/)
  CYMBELLA SINUATA (RARE/)
  CYMBELLA TURGIDA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (FEW/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  DIPLONEIS WEISSFLOGII (RARE/)
  GOMPHONEMA ANGUSTATUM (RARE/)
  GRAMMATOPHORA SP. (RARE/)
  HYALODISCUS SCOTICUS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  RHOPALODIA GIBBA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  SURIRELLA OVATA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA KRYOPHILA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  350/ 360  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   117.00   Group Abund: FEW
Core:   2   Depth Top Sample(m) :   120.86
Sect:  3    No. Observed Fossils:    42      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACHNANTHES LANCEOLATA (RARE/)
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  AMPHORA OVALIS (RARE/)
  ASTEROMPHALUS DARWINII (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS CALIFORNICA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS BULLATUS (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS RADIATUS (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  CYMBELLA SINUATA (RARE/)
  CYMBELLA TUMIDULA (RARE/)
  CYMBELLA TURGIDA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DIPLONEIS INTERRUPTA (RARE/)
  DIPLONEIS PAPULA (RARE/)
  DIPLONEIS SMITHII (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NAVICULA DIRECTA (RARE/)
  PLAGIOGRAMMA STAUROPHORUM (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS MARGARITALIMBATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA LINEATA (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  TRACHYNEIS ASPERA (RARE/)



Leg : 31    Top/Bot Interval(mm):  400/ 410  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   117.00   Group Abund: RARE
Core:   2   Depth Top Sample(m) :   122.41
Sect:  4    No. Observed Fossils:    45      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACHNANTHES LANCEOLATA (RARE/)
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  AMPHORA COFFEAEFORMIS (RARE/)
  AMPHORA OVALIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS DECIPIENS (RARE/)
  COCCONEIS FLUMINENSIS (RARE/)
  COCCONEIS SCUTELLUM (FEW/)
  COSCINODISCUS DEFORMANS (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS INTERRUPTA (RARE/)
  DIPLONEIS OVALIS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  GRAMMATOPHORA SP. (RARE/)
  HANTZSCHIA VIRGATA (RARE/)
  MELOSIRA SULCATA (RARE/)
  PINNULARIA ALPINA (RARE/)
  PINNULARIA GIBBA (RARE/)
  PLAGIOGRAMMA STAUROPHORUM (RARE/)
  PSEUDOEUNOTIA DOLIOLUS (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  STEPHANODISCUS ASTRAEA (RARE/)
  TABELLARIA FENESTRATA (RARE/)
  TETRACYCLUS LACUSTRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm): 1030/1040  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   117.00   Group Abund: ABUNDANT
Core:   2   Depth Top Sample(m) :   124.54
Sect:  5    No. Observed Fossils:    16      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (FEW/)
  ACTINOCYCLUS DIVISUS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA SEMINAE (ABUNDANT/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  PODOSIRA GLACIALIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   117.00   Group Abund: COMMON
Core:   2   Depth Top Sample(m) :   126.60
Sect: CC    No. Observed Fossils:    34      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS NITIDUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  CYMBELLA AFFINIS (RARE/)
  CYMBELLA TURGIDA (RARE/)
  DENTICULA SEMINAE (FEW/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  PODOSIRA GLACIALIS (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  RHOPALODIA GIBBA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  TRACHYNEIS ASPERA (RARE/)



Leg : 31    Top/Bot Interval(mm): 1080/1090  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   136.00   Group Abund: ABUNDANT
Core:   3   Depth Top Sample(m) :   137.09
Sect:  1    No. Observed Fossils:    38      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  GONIOTHECIUM TENUE (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA SP. (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   136.00   Group Abund: COMMON
Core:   3   Depth Top Sample(m) :   139.10
Sect: CC    No. Observed Fossils:    38      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS DEFORMANS (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA ALATA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (FEW/)
  THALASSIOSIRA GRAVIDA FOSSILIS (COMMON/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm): 1060/1070  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   155.00   Group Abund: COMMON
Core:   4   Depth Top Sample(m) :   156.07
Sect:  1    No. Observed Fossils:    19      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  COSCINODISCUS DEFORMANS (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  MELOSIRA SULCATA (ABUNDANT/)
  PLAGIOGRAMMA STAUROPHORUM (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (COMMON/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):  700/ 710  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   155.00   Group Abund: COMMON
Core:   4   Depth Top Sample(m) :   160.21
Sect:  4    No. Observed Fossils:    40      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS BULLATUS (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  GOMPHONEMA ABBREVIATUM (RARE/)
  GONIOTHECIUM TENUE (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  NITZSCHIA GRANULATA (RARE/)
  PSEUDOPYXILLA AMERICANA (FEW/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  STEPHANODISCUS ASTRAEA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   155.00   Group Abund: COMMON
Core:   4   Depth Top Sample(m) :   162.60
Sect: CC    No. Observed Fossils:    36      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ASTEROMPHALUS FLABELLATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS OCCULUS-IRIDIS (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS SMITHII (RARE/)
  DIPLONEIS WEISSFLOGII (RARE/)
  MELOSIRA SULCATA (ABUNDANT/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  STEPHANODISCUS ASTRAEA (RARE/)
  SURIRELLA OVATA (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  910/ 920  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: RARE
Core:   5   Depth Top Sample(m) :   174.92
Sect:  1    No. Observed Fossils:    13      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA GRANULATA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  320/ 330  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: RARE
Core:   5   Depth Top Sample(m) :   177.33
Sect:  3    No. Observed Fossils:    25      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS DIVISUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS OVALIS (RARE/)
  GONIOTHECIUM TENUE (RARE/)
  MELOSIRA GRANULATA (RARE/)
  MELOSIRA SULCATA (RARE/)
  PLAGIOGRAMMA STAUROPHORUM (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)



Leg : 31    Top/Bot Interval(mm):  800/ 810  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: RARE
Core:   5   Depth Top Sample(m) :   179.31
Sect:  4    No. Observed Fossils:     2      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  MELOSIRA SULCATA (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):  800/ 810  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: RARE
Core:   5   Depth Top Sample(m) :   180.81
Sect:  5    No. Observed Fossils:     3      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  CYCLOTELLA STRIATA (RARE/)
  MELOSIRA SULCATA (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm): 1410/1420  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: COMMON
Core:   5   Depth Top Sample(m) :   182.92
Sect:  6    No. Observed Fossils:    24      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  COSCINODISCUS EXCENTRICUS (FEW/)
  COSCINODISCUS EXCENTRICUS FASCICULATA (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS RADIATUS (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NITZSCHIA MARINA (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   174.00   Group Abund: RARE
Core:   5   Depth Top Sample(m) :   183.10
Sect: CC    No. Observed Fossils:    36      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS DECIPIENS (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  DIPLONEIS BOMBUS (RARE/)
  DIPLONEIS COFFAEIFORMIS (RARE/)
  MELOSIRA GRANULATA (RARE/)
  MELOSIRA SULCATA (FEW/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLEISTOCENE
Hole: 301   Depth Top of Core(m):   193.00   Group Abund: RARE
Core:   6   Depth Top Sample(m) :   193.10
Sect: CC    No. Observed Fossils:    42      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS OBSCURUS (RARE/)
  COSCINODISCUS OCCULUS-IRIDIS (RARE/)
  COSCINODISCUS RADIATUS (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  COSCINODISCUS TEMPEREI (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA HEBETATA (RARE/)
  ROPERIA TESSELATA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  SURIRELLA OVATA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA KRYOPHILA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  TRACHYNEIS ASPERA (RARE/)



Leg : 31    Top/Bot Interval(mm):  260/ 270  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   240.50   Group Abund: ABUNDANT
Core:   8   Depth Top Sample(m) :   240.76
Sect:  1    No. Observed Fossils:    32      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ASTEROMPHALUS DARWINII (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  DIPLONEIS BOMBUS (RARE/)
  GOMPHONEMA LANCEOLATUM (RARE/)
  HEMIDISCUS CUNEIFORMIS (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NITZSCHIA EXTINCTA (FEW/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  ROPERIA TESSELATA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA SP. (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)
  TRACHYNEIS ASPERA (RARE/)



Leg : 31    Top/Bot Interval(mm): 1450/1460  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   240.50   Group Abund: ABUNDANT
Core:   8   Depth Top Sample(m) :   244.96
Sect:  3    No. Observed Fossils:    27      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS OBSCURUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  DIPLONEIS BOMBUS (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  ROPERIA TESSELATA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA SP. (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   240.50   Group Abund: RARE
Core:   8   Depth Top Sample(m) :   246.60
Sect: CC    No. Observed Fossils:    29      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  HYALODISCUS SCOTICUS (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (COMMON/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)



Leg : 31    Top/Bot Interval(mm): 1340/1350  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   269.00   Group Abund: ABUNDANT
Core:   9   Depth Top Sample(m) :   270.35
Sect:  1    No. Observed Fossils:    25      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS DIVISUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA SEMINAE FOSSILIS (ABUNDANT/)
  MELOSIRA ALBICANS (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA KRYOPHILA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   269.00   Group Abund: COMMON
Core:   9   Depth Top Sample(m) :   270.60
Sect: CC    No. Observed Fossils:    27      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS OCCULUS-IRIDIS (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  NITZSCHIA EXTINCTA (FEW/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS ANGUSTATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):   30/  40  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   297.50   Group Abund: COMMON
Core:  10   Depth Top Sample(m) :   297.54
Sect:  1    No. Observed Fossils:    30      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA DIMORPHA (RARE/)
  DENTICULA SEMINAE FOSSILIS (ABUNDANT/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  640/ 650  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   316.50   Group Abund: COMMON
Core:  11   Depth Top Sample(m) :   317.14
Sect:  1    No. Observed Fossils:    29      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS DIVISUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS DIMINUTA (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  COSCINODISCUS SYMBOLOPHORUS (RARE/)
  DENTICULA SEMINAE FOSSILIS (COMMON/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA HYALINA (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (FEW/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   316.50   Group Abund: ABUNDANT
Core:  11   Depth Top Sample(m) :   319.60
Sect: CC    No. Observed Fossils:    25      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  COSCINODISCUS EXCENTRICUS JOUSEI (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS MARGINATUS (COMMON/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DUBIOSA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   335.50   Group Abund: ABUNDANT
Core:  12   Depth Top Sample(m) :   335.60
Sect: CC    No. Observed Fossils:    34      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ASTEROMPHALUS DARWINII (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS NODULIFER (RARE/)
  COSCINODISCUS STELLARIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  DIPLONEIS SMITHII (RARE/)
  HEMIDISCUS CUNEIFORMIS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  500/ 510  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   354.50   Group Abund: ABUNDANT
Core:  13   Depth Top Sample(m) :   355.01
Sect:  1    No. Observed Fossils:    21      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ASTEROMPHALUS ROBUSTUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS LINEATUS (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE FOSSILIS (ABUNDANT/)
  NITZSCHIA CYLINDRICA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA KRYOPHILA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   354.50   Group Abund: ABUNDANT
Core:  13   Depth Top Sample(m) :   356.10
Sect: CC    No. Observed Fossils:    20      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS EXCENTRICUS LEASAREOLATUS (RARE/)
  COSCINODISCUS MARGINATUS (COMMON/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE FOSSILIS (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA KRYOPHILA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  680/ 690  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   373.50   Group Abund: ABUNDANT
Core:  14   Depth Top Sample(m) :   374.19
Sect:  1    No. Observed Fossils:    31      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  COSCINODISCUS OCCULUS-IRIDIS (RARE/)
  COSCINODISCUS PUSTULATUS (RARE/)
  CYCLOTELLA COMTA (RARE/)
  DENTICULA KAMTSCHATICA (RARE/)
  DENTICULA SEMINAE FOSSILIS (FEW/)
  DIPLONEIS BOMBUS (RARE/)
  EPITHEMIA ARGUS (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SACHALINENSIS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   373.50   Group Abund: ABUNDANT
Core:  14   Depth Top Sample(m) :   375.10
Sect: CC    No. Observed Fossils:    27      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS MARGINATUS (FEW/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA KAMTSCHATICA (COMMON/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  MELOSIRA ALBICANS (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA CYLINDRICA (RARE/)
  NITZSCHIA EXTINCTA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  130/ 140  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   392.50   Group Abund: COMMON
Core:  15   Depth Top Sample(m) :   392.64
Sect:  1    No. Observed Fossils:    27      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (COMMON/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (FEW/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  HEMIDISCUS CUNEIFORMIS (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SACHALINENSIS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NATIVA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):  730/ 740  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   392.50   Group Abund: COMMON
Core:  15   Depth Top Sample(m) :   396.24
Sect:  3    No. Observed Fossils:    23      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  CYCLOTELLA STRIATA (RARE/)
  DENTICULA KAMTSCHATICA (COMMON/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (ABUNDANT/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (ABUNDANT/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   392.50   Group Abund: ABUNDANT
Core:  15   Depth Top Sample(m) :   398.60
Sect: CC    No. Observed Fossils:    26      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS CURVATULUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  CLADOGRAMMA CALIFORNICUM (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA KAMTSCHATICA (COMMON/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  DIPLONEIS BOMBUS (RARE/)
  MELOSIRA SULCATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA CONVEXA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA NORDENSKIOELDII (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (COMMON/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm):  710/ 720  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   421.00   Group Abund: ABUNDANT
Core:  16   Depth Top Sample(m) :   421.72
Sect:  1    No. Observed Fossils:    21      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS TEMPEREI (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NATIVA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (FEW/)
  THALASSIOSIRA ZABELINAE (FEW/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   421.00   Group Abund: ABUNDANT
Core:  16   Depth Top Sample(m) :   422.60
Sect: CC    No. Observed Fossils:    21      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (FEW/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  DIPLONEIS COFFAEIFORMIS (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SACHALINENSIS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (FEW/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):  300/ 310  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   449.50   Group Abund: COMMON
Core:  17   Depth Top Sample(m) :   449.81
Sect:  1    No. Observed Fossils:    23      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (FEW/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  DIPLONEIS SMITHII (RARE/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   449.50   Group Abund: COMMON
Core:  17   Depth Top Sample(m) :   451.10
Sect: CC    No. Observed Fossils:    20      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS AMPHICEROS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (FEW/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):  680/ 690  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   468.50   Group Abund: COMMON
Core:  18   Depth Top Sample(m) :   469.19
Sect:  1    No. Observed Fossils:    21      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  DIPLONEIS SMITHII (RARE/)
  GOMPHONEMA OLIVACEUM (RARE/)
  MELOSIRA SULCATA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (FEW/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):   80/  90  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   468.50   Group Abund: COMMON
Core:  18   Depth Top Sample(m) :   471.59
Sect:  3    No. Observed Fossils:    25      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS CALIFORNICA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  COSMIODISCUS INSIGNIS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS DIMORPHA (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS INERMIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (FEW/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   468.50   Group Abund: RARE
Core:  18   Depth Top Sample(m) :   474.60
Sect: CC    No. Observed Fossils:    26      Group Presv: POOR

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS INGENS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (FEW/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  GOMPHONEMA CONSTRICTUM CAPITATA (RARE/)
  MELOSIRA SULCATA (RARE/)
  NITZSCHIA GRANULATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):  720/ 730  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   478.00   Group Abund: ABUNDANT
Core:  19   Depth Top Sample(m) :   478.73
Sect:  1    No. Observed Fossils:    23      Group Presv: GOOD

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  DENTICULA SEMINAE FOSSILIS (RARE/)
  HEMIDISCUS CUNEIFORMIS (RARE/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (FEW/)
  STEPHANOGONIA HANZAWAE (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):  340/ 350  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   478.00   Group Abund: COMMON
Core:  19   Depth Top Sample(m) :   481.35
Sect:  3    No. Observed Fossils:    21      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  COSCINODISCUS PLICATUS (RARE/)
  COSCINODISCUS SYMBOLOPHORUS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA SP. (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   478.00   Group Abund: RARE
Core:  19   Depth Top Sample(m) :   485.60
Sect: CC    No. Observed Fossils:    11      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOCYCLUS OCHOTENSIS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS MARGINATUS (COMMON/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA DECIPIENS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)



Leg : 31    Top/Bot Interval(mm): 1230/1240  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   487.50   Group Abund: RARE
Core:  20   Depth Top Sample(m) :   490.24
Sect:  2    No. Observed Fossils:    25      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  ACTINOCYCLUS EHRENBERGII (RARE/)
  ACTINOCYCLUS OCULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COCCONEIS COSTATA (RARE/)
  COSCINODISCUS EXCENTRICUS (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  COSMIODISCUS INSIGNIS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (COMMON/)
  MELOSIRA SULCATA (RARE/)
  RHAPHONEIS SACHALINENSIS (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)



Leg : 31    Top/Bot Interval(mm):  200/ 210  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   487.50   Group Abund: COMMON
Core:  20   Depth Top Sample(m) :   492.21
Sect:  4    No. Observed Fossils:    23      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  COCCONEIS COSTATA (RARE/)
  COCCONEIS SCUTELLUM (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS MARGINATUS FOSSILIS (RARE/)
  COSCINODISCUS SYMBOLOPHORUS (RARE/)
  COSMIODISCUS INSIGNIS (RARE/)
  DENTICULA HYALINA (RARE/)
  DENTICULA KAMTSCHATICA (COMMON/)
  RHAPHONEIS TATSUNOKUCHIENSIS (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA SP. (RARE/)
  THALASSIOSIRA GRAVIDA (RARE/)
  THALASSIOSIRA NATIVA (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA OESTRUPII (RARE/)
  THALASSIOSIRA USATSCHEVII (RARE/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (FEW/)
  THALASSIONEMA NITZSCHIOIDES (Q) (RARE/)
  THALASSIOTHRIX LONGISSIMA (RARE/)



Leg : 31    Top/Bot Interval(mm):    0/   0  Sample Age : PLIOCENE
Hole: 301   Depth Top of Core(m):   487.50   Group Abund: COMMON
Core:  20   Depth Top Sample(m) :   493.60
Sect: CC    No. Observed Fossils:    20      Group Presv: MODERATE

Date:       Investigator(s): KOIZUMI,I.
Join:       IR Volume/Page : 31/ 790

Fossils (Abundance/Preservation):
================================
  ACTINOPTYCHUS UNDULATUS (RARE/)
  BACTERIOSIRA FRAGILIS (RARE/)
  BIDDULPHIA AURITA (RARE/)
  COSCINODISCUS MARGINATUS (RARE/)
  COSCINODISCUS SYMBOLOPHORUS (RARE/)
  COSCINODISCUS TEMPEREI (RARE/)
  DENTICULA KAMTSCHATICA (ABUNDANT/)
  MELOSIRA SULCATA (RARE/)
  PSEUDOPYXILLA AMERICANA (RARE/)
  RHAPHONEIS SURIRELLA (RARE/)
  RHIZOSOLENIA CURVIROSTRIS (RARE/)
  RHIZOSOLENIA STYLIFORMIS (RARE/)
  STEPHANOPYXIS HORRIDUS (RARE/)
  STEPHANOPYXIS TURRIS (RARE/)
  THALASSIOSIRA ANTIQUA (RARE/)
  THALASSIOSIRA GRAVIDA FOSSILIS (RARE/)
  THALASSIOSIRA NIDULUS (RARE/)
  THALASSIOSIRA USATSCHEVII (FEW/)
  THALASSIOSIRA ZABELINAE (RARE/)
  THALASSIONEMA NITZSCHIOIDES (RARE/)

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These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 2000 by the U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Geophysical Data Center, and collocated World Data Center for Marine Geology and Geophysics, Boulder. Data were compiled in cooperation with the U.S. Science Support Program, the Joint Oceanographic Institutions, Inc., and the U.S. National Science Foundation. Please see the NGDC privacy, disclaimer, and copyright notices.