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1 Data Repository item Thibault Figure captions Figure DR1: Conjectured paleobiogeographical map of Micula murus at 68.5 Ma. The area of grey dotted lines indicates the occupation of M. murus. The northern and southern limits are wellconstrained in the Atlantic but not in the Pacific due to the lack of data. Note the absence of M. murus from the Tethys. Figure DR2: Conjectured paleobiogeographical map of Micula murus at 67.3 Ma. The area of grey dotted lines indicates the occupation of M. murus. Note the expansion towards higher latitudes in the Atlantic and Indian Ocean at that time and the occupation of the Tethys. Table DR1: Top depths and bottom depths for the First Occurrence of Micula murus and for the top and base of magnetostratigraphic intervals in all considered sites of this study. Table DR2: Extended informations and corresponding references on localities considered in this study. Full references are given at the end of this Data Repository item.
2 North America 1052E A Gubbio 577A A 525A C 761B Modern Landmass Ancient Landmass Submerged Continental Platform Subduction Zone Late Maastrichtian 68.5 Ma Fig.DR1 North America 1052E A Gubbio 577A 0 530A A C 761B Modern Landmass Ancient Landmass Submerged Continental Platform Subduction Zone Late Maastrichtian 67.3 Ma Fig.DR2
3 1258A 1259A 1260B 1052E A Bottaccione Top depth Bottom depth Top depth Bottom depth Top depth Bottom depth Top depth Bottom Top depth Bottom Top depth Bottom depth Top depth Bottom (m) (m) (m) (m) (m) (m) (m) depth (m) (m) depth (m) (m) (m) (m) depth (m) Mag. interval [C31r] = 2,229Ma [C30n-C31n] = 2,871Ma [C30n-C31n] = 2,871Ma [C31n] = 0,923Ma [top C31n]/Sed.Rate [C30n] = 1,835Ma [C30n] = 1,835Ma Top 261,57 262,77 448,85 450,33 261,57 262,77 335,00 349, ,39 476,52 343,80 343,00 Base 293,50 295,80 468,07 469,57 356,18 358,89 387,00 387,20 171,68 171,78 492,90 500,52 336,00 335,76 FO M. murus 296,30 297,10 467,65 477,12 344,06 357,80 367,90 377,10 173,60 174,30 486,00 491,20 337,90 337,30 Age of FO M. murus (Ma) Avg. 68, , , , , , ,2760 Min. 68, , , , , , ,0250 Max. 69, , , , , , A A A 761B 762C Top depth Bottom depth Top depth Bottom depth Top depth Bottom depth Top depth Bottom Top depth Bottom Top depth Bottom depth Top depth Bottom (m) (m) (m) (m) (m) (m) (m) depth (m) (m) depth (m) (m) (m) (m) depth (m) Mag. interval [C30n-C31n] = 2,871Ma [C30n] = 1,835Ma [C30n] = 1,835Ma [C30n] = 1,835Ma [top C31n]/Sed.Rate [C30n-C31n] = 2,871Ma [C30n] = 1,835Ma Top 594,00 596,00 213,02 213,72 456,39 457,00 286,33 286, ,46 182,13 556,50 566,02 Base 617,50 619,50 267,31 267,81 474,85 475,45 329,32 329,92 121,55 121,75 194,38 195,71 588,64 592,94 FO M. murus 609,50 610,00 262,90 264,83 469,20 470, ,77 122,94 123,38 190,01 191,1 576,99 577,38 Age of FO M. murus (Ma) Avg. 67, , , , , , ,9026 Min. 67, , , , , , ,4134 Max. 67, , , , , ,1290 Table DR1
4 Leg Sites Paleolatitude (ODSN) Ocean Paleodepth Magnetostratigraphy Biostratigraphy DSDP A 41N eastern North Atlantic (1) Townsend (1985) Müller (1985) - CHN N continental, Western North Atlantic (2) Edwards et al. (1999) Self-Trail (2002) ODP 171B 1052E 28N Western North Atlantic (3) Ogg and Bardot (2001) Self-Trail (2002) DSDP N Central North Atlantic ~3000 (4) Larson and Opdyke (1979) Thierstein and Okada (1979) ODP A 4N West Equatorial Atlantic (5) Suganuma and Ogg (2006) Thibault and Gardin (2006) ODP B 4N West Equatorial Atlantic (5) Suganuma and Ogg (2006) Wise in Erbacher et al. (2004) DSDP A 30S Eastern South Atlantic ~2500 (6) Keating and Herrero-Bervera (1984) Stradner and Steinmetz (1984) DSDP A 39S Eastern South Atlantic ~1100 (7) Chave (1984) Thibault and Gardin (2007) DSDP S Eastern South Atlantic ~2700 (7) Chave (1984) Manivit (1984) DSDP S Eastern South Atlantic ~3000 (8) Tauxe et al. (1983) Percival (1983) ODP C 42.5S Indian ocean (9) Galbrun (1992) and this study Thibault and Gardin (this study) DSDP A 8N Eastern Tropical Pacific ~2400 (8) Bleil (1985) Thibault and Gardin (this study) - Bottacione 32N Tethys (10) Lowrie and Alvarez (1977) Monechi and Thierstein (1985) (1) Snyder et al. (1985) (2) Self-Trail (2002) (3) Norris et al. (1998) (4) Tucholke and Vogt (1979) (5) Erbacher et al. (2004) (6) McNulty (1984) (7) Moore et al. (1984) (8) Zachos and Arthur (1986) (9) Zepeda (1998) (10) Premoli-silva and Sliter (1995) Table DR2
5 Additional references on DSDP/ODP sites and other sections considered in this study Bleil, U., 1985, The magnetostratigraphy of Northwest Pacific sediments, Deep Sea Drilling Project Leg 86, Initial Reports of the Deep Sea Drilling Project, Volume 86, p Chave, A.D., 1984, Lower Paleocen e-upper Cretaceous magnetostratigraphy, Sites 5 25, 527, 528, and 529, Deep Sea Drilling Project Leg 74, In itial Reports of the Deep Sea Drilling Project, Volume 74, p Edwards, L.E., Gohn, G.S., Self-Trail, J.M., Prowe ll, D.C., Bybell, L.M., Ba rdot, L.P., Firth, J.V., Huber, B.T., Frederiksen, N.O., and MacLeod, K.G., 1999, Physical Stratigraphy, Paleontology, and Magnetostratigraphy of the USGS - Sant ee Coastal Reserve Core (CHN-803), Charleston County, South Carolina, U.S. Geological Survey Open-file Report , Available online at Erbacher, J., Mosher, D. C., Malone, M.J., et al., 2004, Shipboard Scien tific Party, P roceedings of the Ocean Drilling Pro gram, Initial Reports, Volume 207: College Station, Texas, Ocean Drilling Program, doi: /odp.proc.ir Galbrun, B., 1992, Magnetostratigraphy of Upper Cret aceous and Lower Tertiary sedim ents, Sites 761 and 76 2, Exm outh Plateau, N orthwest Aust ralia, Proceedings o f the Ocean Drilling Program, Scientific Results, Volum e 122: Colleg e Station, Texas, Ocean Drilling P rogram, p , doi: /odp.proc.sr Keating, B. H., and Herrero -Bervera, E., 1984, Ma gnetostratigraphy of Cretaceo us and Early Cenozoic sedim ents of Deep Sea Drilling Proj ect Site 530, Angola Basin, Deep S ea Drilling Project Leg 74, Initial Reports of the Deep Sea Drilling Project, Volume 75, p Larson, P.A., and Opdyke, N.D., 1979, Paleom agnetic results from Early Tertiary/Late Cretaceous sediments of Site 384, Initial Reports of the Deep Sea Drilling Project, Volume 43, p Lowrie, W., and Alvarez, W., 1977, Upper Cretace ous-paleocene magnetic stratigraphy at Gubb io, Italy, III. U pper Cretaceous m agnetostratigraphy, Geologic Society of America Bulletin, v. 88, Manivit, H., 1984, Paleogene and Upper Cretaceous calcareous nan nofossils from Deep Sea Drilling Project Leg 74, Initial Reports of th e Deep Sea Drilling Project, Volum e 74, p McNulty, C.L., 1984, Cretaceous F oraminifers of Hole 530A, Leg 75, Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, Volume 75, p Moore, T.C.Jr., Rabinowitz, P.D., Borella, P.E., Shackleton, N.J., and Boersm a, A., 1984, History of the Walvis Ridge, Initial Reports of the Deep Sea Drilling Project, Volume 75, p Müller, C., 1985, Biostratigraphic a nd Paleoenvironmental interpretation of the Goban Spur region based on a study of calcareous na nnoplankton, Initial Reports of the Deep Sea Drilling Project, Volume 80, p
6 Norris, R.D., Kroon, D., Klaus, A., et al., 1998, Sh ipboard Scientific Party, Proceedings of the Ocean Drilling Program, Initial Reports, Volume 171B: College Station, Texas, Ocean Drilling Program, doi: /odp.proc.ir.171b Ogg, J., and Bardot, L., 2001, Aptian through Eocene Magnetostratigraphic Correlation of the Blake Nose Trans ect (Leg 17 1B), Florida Continen tal Marg in, P roceedings of the Ocean Drilling Program, Scientific Results, Volume 171B: Co llege Statio n, Texas, O cean Drillin g Program, doi: /odp.proc.sr.171b Percival, S.F., 1983, Late Cretaceous to P leistocene calcareous nannof ossils from the South Atlantic, Deep Sea Drilling Proj ect Leg 73, Initial Re ports of the Deep Sea Drilling Project, Volume 73, p Premoli-Silva, I., and Sliter, W.V., 1995, Cretaceous Planktonic fo raminiferal biostratigraphy and evolutinary trends from the Bottacione section, Gubbio, Italy, Palaeontographia Italica, v. 82, Self-Trail, J.M., 2002, Trends in late Maastrichtian calcareous na nnofossil distribution patterns, Western North Atlantic margin, Micropaleontology, v. 48, Snyder,S., Müller, C., Sigal, J., Townsend, H.A., and Poag, C.W., 1985, Biostratigraphic, paleoenvironmental, and paleomagnetic synthesis of the Goban S pur region, Deep Sea Drilling Project Leg 80, Initial Reports of the Deep Sea Drilling Project, Volume 80, p Stradner, H., and Steinm etz, J., 1984, Calcareous nannofossils from t he Angola Basin, Deep Sea Drilling Project Site 530, Initia l Reports of the Deep Sea D rilling Project, Volume 75, p Suganuma, Y., and Ogg, J.G., Ca mpanian through Eocene m agnetostratigraphy of Sites , ODP Leg 207, De merara Rise (w estern equ atorial Atlantic), Proceed ings of t he Ocean Drilling Program, Scientific Results, Volume 207: College Station, Texas, Ocean Drilling Program, p doi: /odp.proc.sr Tauxe, L., Tucker, P., Petersen, N.P., and LaBr ecque, J.L., 1983, Magnetost ratigraphy of Leg 73 sediments, Initial Reports of the Deep Sea Drilling Project, Volume 73, p Thibault, N., and Gardin, S., 2006, Maastrichtia n calcareous nannofoss il biostratigraphy and paleoecology in the Equatorial Atlantic (D emerara Rise, ODP Leg 207 Hole 1258A), Revue de Micropaléontologie, v. 49, Thierstein, H.R., and Okada, H., 1979, The Cret aceous/tertiary bo undary event in the N orth Atlantic, Initial Reports of the Deep Sea Drilling Project, Volume 43, p Townsend, H.A., 1985, The Paleomagnetism of Sediments Acquired from the Goban Spur on Deep Sea Drilling Project Leg 80, Initial Reports of the Deep Sea Drilling P roject, Volum e 80, p
7 Tucholke, B.E., and Vogt, P.R., 1979, W estern North Atlantic: Sedimentary Evolution and Aspects of Tectonic History, Initial Reports of the Deep Sea Drilling Project, Volume 43, p Zachos, J. and Arthur, M., 1986, Paleoceanography of the Cretaceou s/tertiary bo undary Event: Inferences from stable isotopic and other data, Paleoceanography, v. 1, Zepeda, M.A., 1998, Planktonic foram iniferal dive rsity, equitability and biostratigraphy of the uppermost Ca mpanian±maastrichtian, ODP Leg 122, Hole 762C, Exm outh Plateau, NW Australia, eastern Indian Ocean, Cretaceous Research, v. 19,
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