PLANKTONIC FORAMINIFERA Grp Event Name Plotcode Berggren 1985 F TOP Gq.pseudofoliata Tpft 0.22 F TOP G.tosaensis Ttos 0.60 F BT Pul.finalis TPfn 1.30 F TOP G.fistulosus Bfst 1.60 F TOP G.obliquus extremus Tobe 1.80 F BT G.truncatulinoides Btrc 1.90 F TOP G.exilis Texl 2.10 F reappear.Pulleniat. (local) RAPu 2.20 F TOP G.miocenica Tmio 2.20 F TOP G.pertenuis Tprt 2.50 F TOP G.multicamerata Tmtc 2.90 F TOP Gq.altispira Talp 2.90 F BT G.fistulosus Bfst 2.90 F TOP Sph.psis spp TSdp 3.00 F BT Sph.ella dehiscens s.s. BSdd 3.00 F BT G.inflata Bifl 3.00 F TOP G.conomiozea Tcmz 3.00 F BT G.tosaensis Btos 3.10 F BT G.crassula Bcrl 3.10 F TOP Pulleniatina (local) TPlt 3.30 F BT G.pertenuis Bprt 3.30 F BT G.miocenica Bmio 3.40 F TOP G.margaritae Tmgt 3.40 F TOP P.primalis TPpr 3.50 F Pulleniatina s->d sdP 3.80 F TOP G.nepentes Tnep 3.90 F TOP P.spectabilis TPsp 3.90 F BT G.crassaformis s.s. Bcrs 4.10 F BT G.crassaformis s.l. Bcsl 4.30 F TOP G.seiglei Tsgl 4.30 F BT G.puncticulata Bptc 4.40 F TOP G.cibaoensis Tcbn 4.40 F BT Sph.ella dehiscens BSdd 5.10 F BT G.tumida Btum 5.20 F BT P.spectabilis BPsp 5.20 F BT G.congobatus Bcgb 5.30 F BT G.cibaoensis Bcbn 5.30 F TOP G.dehiscens TGqd 5.30 F TOP G.lenguaensis Tlng 5.30 F BT G.margaritae Bmgt 5.60 F BT P.primalis BPpr 5.80 F N.acostaensis s->d acsd 5.80 F BT G.menardii form 5 (dext.) Bmn5 6.00 F N.acostaensis d->s acds 6.10 F BT G.conomiozea Bcmz 6.10 F TOP G.menardii form 4 (sin.) Tmn4 6.60 F BT N.humerosa Bhum 7.50 F BT N.acostaensis Bac 10.20 F TOP G.siakens. Tskn 10.40 F BT G.nepenthes Bnep 11.30 F TOP G.fohsi robusta Tfsr 11.50 F TOP G.fohsi lobata Tfsl 11.50 F BT G.fohsi robusta Bfsr 12.60 F BT G.fohsi lobata Bfsl 13.10 F BT G.praefohsi Bpfs 13.90 F TOP G.peripheroronda Tprr 14.60 F BT G.peripheroacuta Bpra 14.90 F TOP Pr.sicana TPsc 14.90 F TOP Pr.glomerosa TPgl 14.90 F BT O.suturalis BOst 15.20 F BT Pr.circularis BPcr 16.20 F BT Pr.glomerosa BPgl 16.30 F BT G.diminutus Bdim 16.30 F BT Pr.curva BPcv 16.50 F BT Pr.sicana (= G.es bispher.) BPsc 16.60 F BT G.miozea Bmza 16.80 F TOP G.zealandica Tzld 16.80 F TOP G.pseudomiozea Tpmz 16.80 F BT G.birnageae Bbng 17.00 F TOP C.stainforthi TCst 17.40 F BT G.zealandica Bzld 17.60 F BT G.pseudomiozea Bpmz 17.60 F TOP G.semivera Tsmv 17.60 F TOP G.incognita Tigt 17.60 F TOP C.dissimilis TCds 17.60 F BT G.praescitula Bpsc 17.70 F TOP Gq.dehisc. f.spinosa TGqds 18.30 F BT G.altiaperturus Batp 20.90 F TOP G.kugleri Tkgl 21.80 F BT Gq.dhisc. f.spinosa BGqds 22.00 F TOP Gq.globularis BGqg 22.80 F BT Gq.dehiscens BGqd 23.20 F BT G.incognita Bigt 23.20 F TOP G.angulisuturalis Tags 23.20 F TOP G.psedukugleri Tpkg 23.20 F BT G.kugleri Bkgl 23.70 F TOP G.mendacis Tmdc 23.70 F BT G.primordius (common) Bprc 24.30 F BT G.primordius (rare) Bprr 25.80 CALCAREOUS NANNOFOSSILS Grp Event Name Plotcode Berggren 1985 Backman 1990 N Emiliania huxley A Ehu 0.085 N E. huxley B Ehu 0.275 N Pseudoemiliania lacunosa T Pla 0.474 N Helicosphaera sellii T Hse 1.37 N Calcidiscus macintyrei T Cma 1.45 N Gephyrocapsa oceanica B Goc 1.68 N Gephyrocapsa caribbeanica B Gca 1.74 N Discoaster brouweri T Dbr 1.9 N Discoaster triradiatus T Dtr 1.9 N Gephyrocapsa aperta B Gap 2.2 N Discoaster asymmetricus T Das 2.2 N Discoaster pentaradiatus T Dpe 2.4 N Discoaster surculus T Dsu 2.4 N Discoaster tamalis T Dta 2.6 N Discoaster decoratus T Dde 2.9 N Discoaster variabilis T Dva 2.9 N Pseudoemiliania lacunosa B Pla 3.4 N Sphenolithus abies or neoabies T Sna 3.47 N Reticulofenestra pseudoumbilicus T Rps 3.5 N small Gephyrocapsa B sGe 3.6 N Amaurolithus tricorniculatus T Atr 3.7 N Amourolithus delicatus T Ade 3.7 N Discoaster tamalis B Dta 3.8 N Discoaster asymmetricus B Das 4.1 N Amaurolithus tricorniculatus T Apr 4.4 N Ceratolithus rugosus B Cru 4.5 N Ceratolithus acutus T Cac 4.57 4.85 N Ceratolithus acutus B Cac 5 N Triquetrorhabdulus rugosus T Tru 5 4.9 N Discoaster quinqueramus T Dqu 5.6 4.98 N Discoaster berggrenii T Dbe 5.6 N Amaurolithus amplificus T Aam 5.6 N Amaurolithus amplificus B Aam 5.9 N Amaurolithus tricorniculatus B Atr 6 N Amaurolithus primus B Apr 6.5 6.7 N Amaurolithus delicatus B Ade 6.5 N Discoaster quinqueramus B Dqu 8.2 7.46 N Discoaster bollii T Dbo 8.3 N Catinaster calyculus T Cca 8.75 N Discoaster exilis T Dex 8.8 N Discoaster hamatus T Dha 8.85 8.67 N Catinaster coalitus T Cco 9 N Discoaster hamatus B Dha 10 10.5 N Catinaster calyculus B Cca 10 N Catinaster coalitus B Cco 10.8 11.1 N Cyclicargolithus floridanus T Cfl 11.6 13.1 N Discoaster kugleri B Dku 13.1 12.2 N Triquetrorhabdulus rugosus B Tru 14 N Sphenolithus heteromorphus T She 14.4 13.6 N Helicosphaera ampliaperta T Ham 16.2 16 N Sphenolithus heteromorphus B She 17.1 18.4 N Sphenolithus belemnos T Sbe 17.4 18.8 N Sphenolithus belemnos B Sbe 21.5 20 N Discoaster druggii B Ddr 23.2 23.6 N Reticulofenestra bisecta T Rbi 23.7 N Reticulofenestra scrippsae T Rsc 23.7 N Reticulofenestra abisecta T Rab 23.7 TROPICAL PACIFIC RADIOLARIANS Grp Event Name Plotcode Leg 85* R B Collosphaera tuberosa BCOTU 0.68 R T Stylatractus universus TSYUN 0.42 R B Buccinosphaera invaginata BBUIN 0.28 R T Anthocyrtidium nosicaae (I) TACNO 0.71 R T Pterocorys campanula (I) TPCCA 0.72 R T Amphispyris roggentheni TAPRO 0.78 R B Pterocorys hertwigii (I) BPCHE 0.80 R T Anthocyrtidium angulare TACAN 1.05 R T Lamprocyrtis neoheteroporos (I) TLMNE 1.11 R B Lamprocyrtis nigriniae BLMNI 1.20 R T Theocorythium vetulum TTHTV 1.20 R B Theocorythium trachelium BTHTR 1.50 R T Pterocanium prismatium TPTPS 1.60 R B Anthocyrtidum angulare BACAN 1.70 R B Cycladophora davisiana (I) BCYDA 2.43 R B Lamprocyrtis neoheteroporos (I) BLMNE 2.52 R T Stichocorys peregrina TSCPE 2.60 R T Phormostichoartus fistula TPHFI 3.30 R T Spongaster pentas TSPPE 3.30 R T Lychnodictyum audax TLDAU 3.40 R T Phormostichoartus doliolum TPHDO 3.50 R B Amphirhopalum ypsilon BARYP 3.60 R B Spongaster tetras BSPTE 3.70 R T Didymocyrtis penultima TDCPE 3.70 R B Pterocanium praetextum BPTPT 3.90 R T Spongaster berminghami TSPBE 4.20 R T Botryostrobus bramlettei TBSBR 4.20 R Be Spongaster berminghami ESPBE 4.70 R T Solenosphaera omnitubus TSOOM 4.70 R B Pterocanium prismatium BPTPS 4.90 R T Siphostichartus corona TSSCO 5.10 R T Acrobotrys tritubus TABTR 5.30 R T Stichocorys johnsoni TSCJO 5.80 R T Calocycletta caepa TCACE 5.80 R T Dendrospyris bursa TDEBU 6.30 R Be Stichocorys peregrina ESCPE 6.30 R B Solenosphaera omnitubus BSOOM 6.50 R T Diartus hughesi TDIHU 7.00 R B Didymocyrtis laticonus BDCLA 7.50 R B Acrobotrys tritubus BABTR 7.50 R B Spongaster berminghami BSPBE 7.80 R B Didymocyrtis penultima BDCPE 7.90 R T Botryostrobus miralestensis TBSMI 8.00 R T Diartus petterssoni TDIPE 8.00 R T Stichocorys wolffii TSCWO 8.10 R B Diartus hughesi BDIHU 8.20 R Be Diartus petterssoni EDIPE 8.20 R T Lithopera neotera TLPNE 8.70 R B Didymocyrtis antepenultima BDCAN 9.00 R T Cyrtocapsella japonica TCCJA 9.20 R B Botryostrobus bramlettei BBSBR 10.00 R T Carpocanopsis cristata s.s TCPCR 10.00 R B Phormostichoartus doliolum (I) BPHDO 11.50 R T Cyrtocapsella cornuta TCCCO 11.60 R T Cyrtocapsella tetrapera TCCTE 11.90 R T Lithopera renzae TLPRE 11.90 R B Lithopera neotera BLPNE 14.50 R T Calocycletta virginis TCAVI 14.50 R T Calocycletta costata TCACO 14.80 R T Didymocyrtis tubaria TDCTU 14.80 R T Didymocyrtis violina TDCVI 15.15 R T Dorcadospyris forcipata TDSFO 15.25 R T Liriospyris stauropora TLIST 15.25 R T Dorcadospyris dentata TDSDE 15.30 R B Dorcadospyris alata BDSAL 15.50 R T Didymocyrtis prismatica TDCPR 15.80 R T Lychnocanoma elongata TLNEL 15.90 R B Liriospyris parkerae BLIPA 16.25 R B Girraffospyris toxaria BGITO 16.50 R B Calocycletta costata BCACO 17.30 R B Dorcadospyris dentata BDSDE 17.30 R B Stichocorys wolffii BSCWO 18.20 R B Siphostichartus corona BSSCO 18.20 R T Dorcadospyris ateuchus TDSAT 18.20 R B Liriospyris stauropora BLIST 18.40 R T Calocyletta serrata TCASE 19.20 R B Dorcadospyris forcipata BDSFO 19.60 R T Cyclampterium lepetrum TCTLE 20.00 R B Didymocyrtis violina BDCVI 20.20 R B Didymocyrtis tubaria BDCTU 20.30 R B Stichocorys delmontensis BSCDE 20.40 R T Theocyrtis annosa TTCAN 20.90 R B Calocycletta virginis BCAVI 21.50 R B Calocycletta serrata BCASE 21.70 R T Cyclampterium pegetrum TCTPE 22.00 R B Cyrtocapsella cornuta BCCCO 22.10 R B Cyrtocapsella tetrapera BCCTE 22.10 R B Carpocanopsis favosa BCPFA 22.50 R T Artophormis gracilis TATGR 22.60 R T Dorcadospyris papillo TDSPA 22.60 R B Lychnocanoma elongata BLYEL 24.10 *(I)=Indian Ocean calibration TROPICAL INDIAN RADIOLARIANS Grp Event Name Plotcode Leg 117 R T Stylatractus universus TSYUN 0.42 R B Collosphaera tuberosa BCOTU 0.49 R B Buccinosphaera invaginata (P) BBUIN 0.28 R T Anthocyrtidium nosicaae TACNO 0.71 R T Pterocorys campanula TPCCA 0.72 R T Amphispyris roggentheni (P) TAPRO 0.78 R B Pterocorys hertwigii BPCHE 0.80 R T Anthocyrtidium angulare TACAN 0.99 R B Lamprocyrtis nigriniae BLMNI 1.05 R T Lamprocyrtis neoheteroporos TLMNE 1.11 R B Anthocyrtidum angulare BACAN 1.54 R T Pterocanium prismatium TPTPS 1.60 R T Theocorythium vetulum TTHTV 1.70 R B Eucyrtidium matuyami BEUMA 1.88 R B Cycladophora davisiana BCYDA 2.43 R B Theocorythium trachelium BTHTR 2.45 R B Lamprocyrtis neoheteroporos BLMNE 2.52 R T Stichocorys peregrina TSCPE 2.63 R T Phormostichoartus fistula TPHFI 3.27 R T Lychnodictyum audax TLDAU 3.34 R T Spongaster pentas TSPPE 3.50 R T Phormostichoartus doliolum TPHDO 3.54 R T Didymocyrtis penultima (P) TDCPE 3.70 R B Amphirhopalum ypsilon BARYP 3.78 R B Spongaster tetras BSPTE 3.84 R T Spongaster berminghami TSPBE 3.90 R Be Spongaster berminghami ESPBE 4.40 R T Solenosphaera omnitubus TSOOM 4.75 R T Botryostrobus bramlettei TBSBR 4.95 R T Dendrospyris bursa TDEBU 5.05 R T Siphostichartus corona TSSCO 5.10 R B Pterocanium praetextum BPTPT 5.35 R T Acrobotrys tritubus TABTR 5.35 R B Pterocanium prismatium BPTPS 5.70 R T Stichocorys johnsoni TSCJO 5.75 R Be Stichocorys peregrina ESCPE 6.30 R T Calocycletta caepa TCACE 6.40 R B Solenosphaera omnitubus BSOOM 6.40 R T Diartus hughesi TDIHU 7.15 R B Didymocyrtis laticonus (P) BDCLA 7.50 R B Acrobotrys tritubus BABTR 7.75 R B Didymocyrtis penultima (P) BDCPE 7.90 R B Spongaster berminghami BSPBE 7.95 R T Stichocorys wolffii TSCWO 8.10 R T Botryostrobus miralestensis TBSMI 8.15 R T Diartus petterssoni TDIPE 8.15 R T Lithopera neotera TLPNE 8.60 R B Diartus hughesi BDIHU 8.75 R B Didymocyrtis antepenultima (P) BDCAN 9.00 R B Botryostrobus bramlettei BBSBR 9.90 R T Carpocanopsis cristata s.s TCPCR 9.90 R T Cyrtocapsella japonica TCCJA 10.15 R Be Diartus petterssoni EDIPE 10.70 R B Phormostichoartus doliolum BPHDO 11.50 R T Cyrtocapsella cornuta TCCCO 11.75 (all older events use Pacific calibration) ANTARCTIC RADIOLARIANS Grp Event Name Plotcode Leg 120 R T Antarctissa cylindrica TAACY 0.61 R T Pterocanium chary. trilobum TPTTR 0.80 R T Cycladophora pliocenica TCYPL 1.73 R B Triceraspyris antarctica BTRAN 1.85 R T Eucyrtidium calvertense TEUCA 1.85 R T Helotholus vema THEVE 2.32 R T Desmospyris spongiosa TDMSP 2.34 R B Cycladophora davisiana BCYDA 2.50 R T Prunopyle titan TPRTI 3.32 R T Lampromitra coronata TLOCO 3.50 R B Helotholus vema BHEVE 4.20 R LCO Lychnocanium grande LLYGR 4.60 R T Amphymenium challengerae TAMCH 5.50 R B Amphymenium challengerae BAMCH 6.00 R B Acrosphaera labrata BASLA 7.00 R T Cycladophora spongothorax TCYSP 8.30 R FCO Stichocorys peregrina FSCPE 8.40 R LCO Lithomelissa stigi LLTST 8.49 R FCO Lithomelissa stigi FLTST 8.98 R Be Acrosphaera australis EASAU 9.70 R T Cycladophora humerus TCYHU 9.90 R B Eucyrtidium pseudoinflatum BEUPS 10.00 R T Actinomma golownini TANGO 10.20 R B Cycladophora spongothorax BCYSP 12.30 R B Dendrospyris megalocephalis BDEME 12.45 R B Actinomma golownini BANGO 13.40 R B Cycladophora humerus BCYHU 14.20 R B Eucyrtidium punctatum BEUPU 17.30 R B Cycladophora golli regipileus BCYRE 19.40 R B Cyrtocapsella longithorax BCCLO 21.00 NORTH PACIFIC RADIOLARIANS Grp Event Name Plotcode R T Stylatractus universus TSYUN 0.35 R T Lamprocyrtis neoheteroporos TLMNE 0.50 R T Lychnocanium grande TLYGR 0.50 R B Lamprocyrtis nigriniae (haysi) BLMNI 0.80 R T Eucyrtidium matuyami TEUMA 1.00 R B Eucyrtidium matuyami BEUMA 1.90 R B Cycladophora davisiana BCYDA 2.70 R T Stichocorys peregrina TSCPE 2.80 R B Theocorythium trachelium BTHTR 2.80 R T Botryostrobus bramlettei TBSBR 4.20 R B Lamprocyrtis heteroporos BLMHE 4.40 R B Stylacontarium aquilonium BSLAQ 4.50 R B Sphaeropyle langii BSHLA 4.70 R Be Stichocorys peregrina ESCPE 6.30 R T Didymocyrtis penultima TDCPE 6.70 R T Diartus hughesi TDIHU 7.00 R B Didymocyrtis penultima BDCPE 8.90 R T Lithopera neotera TLPNE 10.00 R T Diartus petterssoni TDIPE 10.50 R B Didymocyrtis antepenultima BDCAN 10.60 R T Cyrtocapsella japonica TCCJA 10.80 R B Diartus hughesi BDIHU 11.20 R T Cyrtocapsella tetrapera TCCTE 11.80 R Be Diartus petterssoni EDIPE 11.90 R T Cyrtocapsella cornuta TCCCO 12.20 R T Eucyrtidium inflatum TEUIN 12.40 R T Lithopera renzae TLPRE 12.40 R B Eucyrtidium inflatum BEUIN 13.20 R B Lithopera neotera BLPNE 14.10 R T Didymocyrtis violina TDCVI 15.15 TROPICAL AND NORTH PACIFIC DIATOMS Grp Event Name Plotcode Pmag Cal.* D top N.reinholdii tNr 0.65 x D top T.plicata tTp 0.80 D top N.fossilis tNf 0.85 D top R.matuyamai tRm 0.94 x D base R.matuyamai bRm 1.10 x D top R.praebergonii v. robusta bRpr 1.55 x D base Azpeitia barronii tAb 1.60 D base P.doliolus bPd 1.80 x D top R.praebergonii tRp 1.85 x D top T.convexa tTc 2.10 x D top N.jouseae tNj 2.60 x D base R.praebergonii bRp 3.00 x D top A.ellepticus f.lanceolata tAel 3.20 D base T.convexa v.convexa bTcc 3.60 x D base A.elegans bAe 3.90 x D top N.cylindrica tNc 4.30 x D base N.jouseae bNj 4.50 x D base T.oestrupii bTo 5.10 x D top T.miocenica tTm 5.10 x D top A.acutiloba tAa 5.35 x D top N.miocenica tNm 5.55 x D top N.miocenica v.elongata tNme 5.65 x D top T.praeconvexa tTp 5.80 x D top R.praepaleacea tRpp 6.00 x D base T.miocenica bTm 6.10 x D base T.convexa v.aspinosa bTca 6.10 x D base T.praecovexa bTp 6.30 x D top N.porteri tNp 6.70 x D base N.miocenica bNm 6.70 x D top R.paleacea tRp 6.90 x D top T.burckliana tTb 7.00 x D base N.reinholdii bNr 7.30 D top A.ellipticus v.javanicus tAej 7.30 D base N.marina bNm 7.40 D top T.yabei tTy 7.50 x D base N.cylindrica bNc 7.60 D base Azpeitia nodulifer v.cyclopus bAnc 7.70 x D top T.yabei v.elliptica tTye 7.90 D top C.loeblichii tCl 7.90 D top C.temperei v.delicata tCtd 8.05 D base N.fossilis bNf 8.10 D base T.yabei v.elliptica bTye 8.10 D base T.burckliana bTb 8.20 x D base C.loeblichii bCl 8.40 D top A.vetustissimus v.javanica tAvj 8.50 x D base A.vetustissimus v.javanica bAvj 8.75 D top A.moronensis tAm 8.90 x D base A.ellipticus f.lanceolata bAel 9.90 D top C.tuberculatus tCt 10.10 x D top S.jouseana tSj 10.40 D top C.coscinodiscus tCc 10.60 x D base R.paleacea v.elongata bRpe 10.60 D top D.punctata tDp 10.60 x D base T.robusta bTr 10.60 D top C.gigas v.diorama tCgd 10.70 D top A.ellipticus v.spiralis tAes 10.80 D base H.cuneiformis bHc 11.10 x D base R.praepaleacea bRpp 11.45 D base C.temperei v.delicata bCtd 11.50 x D top A.ingens tAi 11.50 D base N.porteri bNp 11.70 D top D.nicobarica tDn 12.20 D top Annellus californicus tAc 12.40 15.0??? D top Azpeitia salisburyanus tAs 12.50 D base C.gigas v.diorama bCgd 12.60 D top C.lewisianus tCl 12.70 x D top Cestodiscus pulchellus tCp 12.90 D base D.punctata bDp 13.00 D top T.tappanae tTt 13.25 x D base Azpeitia nodulifer bAn 13.30 D base T.cinnamomeum bTc 13.40 D base T.grunowii bTg 13.40 D base D.hustedtii main tDhm 13.60 x D base C.tuberculatus bCt 13.90 x D top C.pulchellus v.maculatis tCpm 13.90 D base A. ellipticus v.spiralis bAes 14.20 D top Cestodiscus peplum tCp 14.20 x D base C.peplum bCp 16.30 x? D top T.bukryi tTb 17.00 x? D base D. nicobarica bDn 17.80 x? D top Craspedodiscus elegans tCe 18.70 x? D top Bogorovia veniamini tBv 19.90 D top C.oligocenicus tCo 20.60 D top T.primalabiata tTp 21.70 D base R.paleacea bRp 22.70 D base Rocella gelida bRg 24.50 ?? D base B.veniamini bBv 26.50 *=direct calibration to paleomagnetic stratigraphy ANTARCTIC DIATOMS Grp Event Name Plotcode Leg 120* D LAD H. karstenii tHk 0.195 D LAD R. robusta tRr 0.8 1.6 D LAD Actinocyclus ingens tAi 0.6g 0.62 D LAD Coscinodiscus elliptopora tCe 0.65c D LAD A. webbi tAw 0.8 D LAD N. barronii tNb 1.25 D LAD Rhizosolenia barboi tRb 1.58b D LAD T. torokina tTt 1.8 D LAD T. fasciculatus tTf 1.6 D FAD A. webbi bAw 1.7 D FAD A. fasciculatus bAf 1.7 D LAD A. maccollumii tAm 1.7 2.8 D FAD A. fasciculatus bAf 1.7 2.8 D LAD Thalassiosira kolbei tTk 1.75 1.89b D LAD T. inura tTi 1.75 D LAD T. vulnifica tTv 2.2 D FAD Coscinodiscus elliptopora bCe 2.2c D FAD A. hookeri bAh 2.2 D FAD T. gracilis bTg 2.2 D LAD Coscinodiscus vulnificus tCv 2.22b D LAD T. insigna tTi 2.5 D LAD T. interfrigidaria tTi 2.5 D LAD Cosmiodiscus insignis tCi 2.1 2.5 D LAD R. heteropolara tRh 2.5 D LAD N. weaveri tNw 2.64 D LAD T. complicata tTc 2.8 D LAD T. barretti tTb 2.8 D LAD T. striata tTs 2.8-3.2 D FAD A. maccullumii bAm 2.8-3.1 D FAD N. kerguelensis bNk 3.1 D FAD A. actinochilus bAa 3 D FAD T. vulnifica bTv 3.2 D FAD N. weaveri bNw 3.2 D LAD T. ritscheri spinosa tTrs 3.2 D FAD T. lentiginosa ovalis bTlo 3.2 D FAD T. insigna bTi 3.2 D LAD N. reinholdii tNr 3.2 D FAD T. barretti bTb 3.25 D FAD N. curta bNc 3.45 D FAD N. ritscherii bNr 3.5 D FAD T. ritscherii bTr 3.5 D LAD N. praeinterfrigidaria tNp 3.5 D LAD N. wisei tNw 3.5 D LAD N. praecurta tNp 3.6 D LAD N. arcula tNa 3.6 D FAD Nitzschia interfrigidaria bNi 3.6b 3.75 D FAD R. alata group bRag 3.8 D LAD N. aurica tNa 3.8 D LAD R. costata tRc 3.9 D LAD T. nitzschioides parva tTnp 3.9 D FAD T. lentiginosa bTl 3.9 D FAD T. kolbei bTk 4 D LAD R. fennerii tRf 4.1 D FAD T. striata bTs 4.1 D FAD R. robusta bRr 4.1 D FAD N. wisei bNw 4.2 D FAD A. parvulus bAp 4.2 D FAD R. diploneides bRd 4.2 D FAD T. fasciculatus bTf 4.2 D FAD Nitzschia barronii bNb 4.0b 4.2 D LAD R. ciesielski tRc 4.2 D FAD N. lacrima bNl 4.3 D FAD Rouxia heteropolara bRh 4.3 D FAD Thalassiosira complicata bTc 4.3 D FAAD Thalassiosira inura bTi 4.5 4.8 D FAD N. praeinterfrigidaria bNp 4.55 D LAD Denticulopsis hustedtii tDh 4.5g D LAD N. miocenica tNm 5.1 D FAD Thalassiosira oestrupii bTo 5.1b 5.2 D LAD N. donahuensis tNd 5.3 D LAD A. ingens var. A tAiA 5.3 D FAD T. inura bTi 5.4 D LAD H. triangularis tHt 5.3 D LAD N. mirabilis tNm 5.3 D LAD A. concavus tAc 5.5 D LAD H. karstenii f. 1 tHk1 5.7 D LAD Asteromphalus kennettii tAk 5.7 7.1 D LAAD Denticulopsis hustedtii tADh 5.6 5.7 D LAD H. ovalis tHo 5.7 D FAD T. ritscheri spinosa bTrs 5.7 D FAD H. triangulus bHt 5.7 D FAD T. oliverana bTo 5.8 D FAD N. reinholdii bNr 5.8 D FAD A. ingens var. A bAiA 5.9 7.9 D LAD L. minisculum tLm 7.2 D FAD H. ovalis bHo 7.3 D LAD D. dimorpha tDd 8 D FAD T. oliverana sparsa bTos 7.8 D FAD H. karstenii f. 1 bHk1 8.1 D FAD Actinocyclus ingens v. ovalis bAio 7.8g 7.9g D FAD Thalassiosira torokina bTt 7.9b 8.2 D FAD Cosmiodiscus intersectus bCi 7.9g D FAD L. minisculum bLm 8.6 D FAD D. hustedtii ovalis bDho 8.8 D FAD N. donahuensis bNd 8.8 D FAD H. karstenii bHk 8.8 D FAD Asteromphalus kennettii bAk 9.6 D LAAD Denticulopsis dimorpha tADd 9.8g 10.1 D LAD Denticulopsis praedimorpha tDp 10.4g 11.2 D LAD A. oligocenica tAo 11.7 D FAD Actinocyclus fryxellae bAf 10.5b 11.7 D FAD Nitzschia praecurta bNp 10.5g D LAAD Denticulopsis praedimorpha tADp 10.8g 10.9g D FAAD Denticulopsis dimorpha bADd 10.9g 11.0g D LAD Nitzschia denticuloides tNd 11.3 11.5g D FAD Denticulopsis dimorpha bDd 11.9 D LAD D. nicobarica tDn 12 D FAD S. barboi bSb 12.5 D LAD Actinocyclus ingens v. nodus tAin 12.3 D FAD Denticulopsis praedimorpha bDp 12.6 D FAD Nitzschia denticuloides bNd 13.4 13.5b D LAD Nitzschia grossepunctata tNg 12.6 13.5g D LAD C. lewisianus tCl 13.2 D FAD Denticulopsis hustedtii bDh 14.2 D LAD Denticulopsis maccollumii tDm 14.2 14.4g D LAD Nitzschia maleinterpretaria tNm 14.1 14.6g D FAD Actinocyclus ingens v. nodus bAin 14.5 14.9g D LAD S. jouseana tSj 14.7 D FAD D. hyalina bDh 15 D FAD D. lauta bDl 16 D LAD R. marylandica tRm 14 D FAD Actinocyclus ingens bAi 15.2g 16.4b D FAD Nitzschia grossepunctata bNg 15.3g 16 D LAD Thalassiosira fraga tTf 18.6 D FAD Denticulopsis maccollumii bDm 17.2 D FAD Crucidenticula nicobarica bCn 17.8 D FAD C. kanayae bCk 18 D LAD C. rhombicus tCr 18.1 D FAD N. mirabilis bNm 18.3 D LAD A. symmetricus tAs 18.6 D LAD T. spumellaroides tTs 19.3 D LAD R. symmetrica tRs 19.7 D FAD Thalassiosira fraga bTf 20.3b 20.8 D LAD A. gombosi tAg 21.5 D FAD R. marylandicus bRm 22 D LAD T. primalabiata tTp 22.3 D LAD H. taurus tHt 22.3 D LAD R. gelida tRg 22.4 D FAD Nitzschia maleinterpretaria bNm ?20.2g D FAD Thalassiosira spumellaroides bTs 21.0b 22.3 D LAD R. schraderi tRs 23.7 D LAD T. groningensis tTg 23.7 D LAD L. ornata tLo 24.5 D LAD R. vigilans (large) tRvl 26.3 * "g=Gersonde & Burckle, L113; b=Barron and Baldauf, L119; c=Ciesielski, 1983" PALEOMAGNETIC EVENTS Grp Event Name Plotcode Berggren 1985 M Brunhes T1N1 0 M Brunhes B1N1 0.73 M Jaramillo T1N2 0.91 M Jaramillo B1N2 0.98 M Olduvai T2N1 1.66 M Olduvai B2N1 1.88 M Gauss T2AN1 2.47 M Gauss B2AN1 2.92 M Gauss (^kaena) T2AN2 2.99 M Gauss B2AN2 3.08 M Gauss (^mammoth) T2AN3 3.18 M Gauss B2AN3 3.4 M Gilbert-cochiti T3N1 3.88 M Gilbert-cochiti B3N1 3.97 M Gilbert-nunivak T3N2 4.1 M Gilbert-nunivak B3N2 4.24 M Gilbert-sidufjall T3N3 4.4 M Gilbert-sidufjall B3N3 4.47 M Gilbert-thvera T3N4 4.57 M Gilbert-thvera B3N4 4.77 M 3A/chron 5 T3AN1 5.35 M 3A/chron 5 B3AN1 5.53 M 3A/chron 5 T3AN2 5.68 M 3A/chron 5 B3AN2 5.89 M 3A/chron 6 T3AN3 6.37 M 3A/chron 6 B3AN3 6.5 M 4/chron 7 T4N1 6.7 M 4/chron 7 B4N1 6.78 M 4/chron 7 T4N2 6.85 M 4/chron 7 B4N2 7.28 M 4/chron 7 N4N3 7.35 M 4/chron 7 B4N3 7.41 M 4A/chron 9 T4AN1 7.9 M 4A/chron 9 B4AN1 8.21 M 4A/chron 9 T4AN2 8.41 M 4A/chron 9 B4AN2 8.5 M 4A/chron 10 T4AN3 8.71 M 4A/chron 10 B4AN3 8.8 M 5/chron 11 T5N1 8.92 M 5/chron 11 B5N1 10.42 M C5 T5N2 10.54 M C5 B5N2 10.59 M C5 T5N3 11.03 M C5 B5N3 11.09 M C5A T5AN1 11.55 M C5A B5AN1 11.73 M C5A T5AN2 11.86 M C5A B5AN2 12.12 M C5A T5AN3 12.46 M C5A B5AN3 12.49 M C5A T5AN4 12.58 M C5A B5AN4 12.62 M C5AA T5AAN1 12.83 M C5AA B5AAN1 13.01 M C5AB T5ABN1 13.2 M C5AB B5ABN1 13.46 M C5AC T5ACN1 13.69 M C5AC B5ACN1 14.08 M C5AD T5ADN1 14.2 M C5AD B5ADN1 14.66 M C5B T5BN1 14.87 M C5B B5BN1 14.96 M C5B T5BN2 15.13 M C5B B5BN2 15.27 M C5C T5CN1 16.22 M C5C B5CN1 16.52 M C5C T5CN2 16.56 M C5C B5CN2 16.73 M C5C T5CN3 16.8 M C5C B5CN3 16.98 M C5D T5DN1 17.57 M C5D B5DN1 17.9 M C5D T5DN2 18.12 M C5D B5DN2 18.14 M C5E T5EN1 18.56 M C5E B5EN1 19.09 M C6 T6N1 19.35 M C6 B6N1 20.45 M C6A T6AN1 20.88 M C6A B6AN1 21.16 M C6A T6AN2 21.38 M C6A B6AN2 21.71 M C6AA T6AAN1 21.9 M C6AA B6AAN1 22.06 M C6AA T6AAN2 22.25 M C6AA B6AAN2 22.35 M C6B T6BN1 22.57 M C6B B6BN1 22.97 M C6C T6CN1 23.27 M C6C B6CN1 23.44 M C6C T6CN2 23.55 M C6C B6CN2 23.79 M C6C T6CN3 24.04 M C6C B6CN3 24.21 M C7 T7N1 25.5 M C7 B7N1 25.6 M C7 T7N2 25.67 M C7 B7N2 25.97