leg site hole core section top interval depth(cm) bottom interval depth (cm) coredepth(m) sample depth(m) total number of observed fossils investigators name publication date (month/year) dsdp initial report volume number fossil group group abundance chemical overgrowth chemical dissolution mechanical preservations age page number reference fossil code fossil fossil abundance fossil preservation record join code 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DACTI0160 Actinocyclus ochotensis RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DBIDD0030 Biddulphia aurita RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0040 Coscinodiscus anguste-lineatus RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0470 Coscinodiscus lineatus RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0490 Coscinodiscus marginatus RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0580 Coscinodiscus nodulifer RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0640 Coscinodiscus occulus-iridis RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0770 Coscinodiscus radiatus RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0880 Coscinodiscus tabularis RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0150 Denticula seminae RARE 1 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DNITZ0380 Nitzschia marina RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DPLAN0010 Planktoniella sol RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DPSED0010 Pseudoeunotia doliolus RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DRHIZ0050 Rhizosolenia bergonii RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DSTEA0290 Stephanopyxis turris RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAL0060 Thalassionema nitzschioides RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAL0065 Thalassionema nitzschioides (q) RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0100 Thalassiosira excentrica RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0110 Thalassiosira excentrica jousei RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0195 Thalassiosira lineata RARE 2 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0280 Thalassiosira oestrupii RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0160 Denticula seminae fossilis RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0260 Thalassiosira nidulus RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0070 Denticula kamtschatica RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0080 Denticula lauta RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DACTI0050 Actinocyclus ehrenbergii RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DACIN0100 Actinoptychus undulatus RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCYCL0045 Cyclotella striata RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDIPL0020 Diploneis bombus RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DMELO0160 Melosira sulcata RARE 3 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DRHAP0190 Rhaphoneis surirella RARE 4 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DACHN0030 Achnanthes lanceolata RARE 4 20 194 1 1 144.0 147.0 37.50 145.50 33 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DEUNO0010 Eunotia sp. RARE 4 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0030 Coscinodiscus africanus RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0490 Coscinodiscus marginatus RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCOSC0580 Coscinodiscus nodulifer RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0150 Denticula seminae RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DNITZ0380 Nitzschia marina RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DPLAN0010 Planktoniella sol RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DPSED0010 Pseudoeunotia doliolus RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAL0060 Thalassionema nitzschioides RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAL0065 Thalassionema nitzschioides (q) RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DTHAA0280 Thalassiosira oestrupii RARE 1 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0160 Denticula seminae fossilis RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DDENT0060 Denticula hyalina RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DNITZ0150 Nitzschia fossilis RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DACIN0100 Actinoptychus undulatus RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCYCL0045 Cyclotella striata RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DMELO0160 Melosira sulcata RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DCYCL0020 Cyclotella comta RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DMELO0070 Melosira granulata RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DMELO0095 Melosira islandica curvata RARE 2 20 194 1 6 121.0 123.0 37.50 122.00 20 KOIZUMI,I. 32 DIATOMS RARE POOL NO AGE GIVEN 870 DPINN0030 Pinnularia borealis RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCOSC0040 Coscinodiscus anguste-lineatus RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCOSC0580 Coscinodiscus nodulifer RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCOSC0590 Coscinodiscus nodulifer cyclopus RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCOSC0630 Coscinodiscus obscurus RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCOSC0880 Coscinodiscus tabularis RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DHEMD0010 Hemidiscus cuneiformis RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DHEMD0020 Hemidiscus karstenii RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DNITZ0380 Nitzschia marina RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DPLAN0010 Planktoniella sol RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DTHAL0060 Thalassionema nitzschioides RARE 1 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DTHAL0065 Thalassionema nitzschioides (q) RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DTHAA0100 Thalassiosira excentrica RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DTHAA0280 Thalassiosira oestrupii RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DDENT0060 Denticula hyalina RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DNITZ0150 Nitzschia fossilis RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCUSS0050 Cussia tatsunokuchiensis RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DTHAA0050 Thalassiosira convexa RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DDENT0070 Denticula kamtschatica RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DNITZ0310 Nitzschia jouseae RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DNITZ0450 Nitzschia pliocena RARE 2 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DDENT0040 Denticula hustedtii RARE 3 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DKISS0010 Kisseleviella carina RARE 3 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DDENT0080 Denticula lauta RARE 3 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DACTI0050 Actinocyclus ehrenbergii RARE 3 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DACIN0100 Actinoptychus undulatus RARE 3 20 194 2 1 124.0 126.0 142.00 125.00 26 KOIZUMI,I. 32 DIATOMS RARE MODERATE NO AGE GIVEN 870 DCYCL0010 Cyclotella chaetoceras RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DACTI0090 Actinocyclus ellipticus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DASTR0080 Asteromphalus flabellatus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCOSC0040 Coscinodiscus anguste-lineatus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCOSC0470 Coscinodiscus lineatus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCOSC0490 Coscinodiscus marginatus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCOSC0580 Coscinodiscus nodulifer RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCOSC0590 Coscinodiscus nodulifer cyclopus RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DHEMD0010 Hemidiscus cuneiformis RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DHEMD0020 Hemidiscus karstenii RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DNITZ0380 Nitzschia marina RARE 1 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAL0060 Thalassionema nitzschioides RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAL0065 Thalassionema nitzschioides (q) RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAA0100 Thalassiosira excentrica RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DDENT0060 Denticula hyalina RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DNITZ0150 Nitzschia fossilis RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCUSS0050 Cussia tatsunokuchiensis RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAA0050 Thalassiosira convexa RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DDENT0070 Denticula kamtschatica RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAA0030 Thalassiosira antiqua RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DTHAA0330 Thalassiosira praeconvexa RARE 2 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DACTI0050 Actinocyclus ehrenbergii RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DACIN0100 Actinoptychus undulatus RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCYCL0045 Cyclotella striata RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DCYCL0010 Cyclotella chaetoceras RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DMELO0070 Melosira granulata RARE 3 20 194 2 5 90.0 92.0 142.00 91.00 26 KOIZUMI,I. 32 DIATOMS COMMON GOOD NO AGE GIVEN 870 DMELO0095 Melosira islandica curvata RARE 3