Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405
Most species of Late Cretaceous deep-sea benthic foraminifera are believed to be cosmopolitan and therefore to exhibit only minor biogeographical differences. In this preliminary report, six Deep Sea Drilling Project (DSDP) sites from different oceans, paleolatitudes, and paleodepths were analyzed f...
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1992
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Online Access: | https://dx.doi.org/10.1594/pangaea.705512 https://doi.pangaea.de/10.1594/PANGAEA.705512 |
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ftdatacite:10.1594/pangaea.705512 2023-05-15T17:33:16+02:00 Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 Widmark, Joen G V Malmgren, Bjorn 1992 application/zip https://dx.doi.org/10.1594/pangaea.705512 https://doi.pangaea.de/10.1594/PANGAEA.705512 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/0031-0182(92)90092-j Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg39 Leg43 Leg62 Leg72 Leg74 Glomar Challenger Deep Sea Drilling Project DSDP Collection article Supplementary Collection of Datasets 1992 ftdatacite https://doi.org/10.1594/pangaea.705512 https://doi.org/10.1016/0031-0182(92)90092-j 2021-11-05T12:55:41Z Most species of Late Cretaceous deep-sea benthic foraminifera are believed to be cosmopolitan and therefore to exhibit only minor biogeographical differences. In this preliminary report, six Deep Sea Drilling Project (DSDP) sites from different oceans, paleolatitudes, and paleodepths were analyzed for terminal Cretaceous abyssal-bathyal benthic foraminifera in order to investigate their assumed cosmopolitan distribution and the question of whether different faunal compositions are related to time, different paleolatitudes, and/or different paleodepths. The material studied was obtained from the low-latitude Site 465 (Pacific Ocean), and the intermediate-latitude Sites 384 (North Atlantic) and 356, 516, 525, and 527 (South Atlantic). The material analyzed represents a time slice encompassing the last 20-50 k.y. of the Cretaceous. The faunas contain numerous "Velasco-type" species, such as Gavelinella beccariiformis (White), Cibicidoides velascoensis (Cushman), Nuttallides truempyi (Nuttall), Gaudryina pyramidata Cushman, and various gyroidinoids and buliminids. The results contradict the general assumption of the cosmopolitan nature of Late Cretaceous deep-sea benthic foraminifera advocated in the literature. Only about 9% of the taxa identified were found to be truly "cosmopolitan" through their occurrence at all the sites analyzed. On the basis of correspondence analysis and relative abundance data, three assemblages and three subassemblages were recognized: (1) a bathyal-abyssal assemblage [Nuttallinella sp. A, Cibicidoides hyphalus (Fisher), Valvalabamina sp. evolute form, and Gyroidinoides spp.] at the South Atlantic Sites 356, 516, 525, and 527, divided into three subassemblages, namely (a) a middle bathyal subassemblage [Eouvigerina subsculptura McNeil and Caldwell, Truaxia aspera (Cushman), and G. pyramidata] at Sites 516 and 525, (b) a lower bathyal subassemblage [Osangularia? sp., Pyramidina rudita (Cushman and Parker), and Quadrimorphina camerata (Brotzen)] at Site 356, and (c) an abyssal subassemblage [Gyroidinoides sp. C, Hyperammina-Bathysiphon, Gyroidinoides beisseli (White), and Globorotalites sp. B] at Site 527; (2) an abyssal assemblage [Buliminella cf. plana (Cushman and Parker) and Bulimina incisa Cushman] at the North Atlantic Site 384; and (3) a middle bathyal assemblage [Vulvulina sp. A, Osangularia navarroana (Cushman), Alabamina? sp., Bulimina velascoensis (Cushman), Spiroplectammina spp. calcareous forms, and Bulimina trinitatensis Cushman and Jarvis] at the Pacific Site 465. Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Pacific Caldwell ENVELOPE(-101.500,-101.500,-72.083,-72.083) Malmgren ENVELOPE(-66.117,-66.117,-65.750,-65.750) Widmark ENVELOPE(-65.517,-65.517,-66.283,-66.283) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg39 Leg43 Leg62 Leg72 Leg74 Glomar Challenger Deep Sea Drilling Project DSDP |
spellingShingle |
Drilling/drill rig Leg39 Leg43 Leg62 Leg72 Leg74 Glomar Challenger Deep Sea Drilling Project DSDP Widmark, Joen G V Malmgren, Bjorn Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
topic_facet |
Drilling/drill rig Leg39 Leg43 Leg62 Leg72 Leg74 Glomar Challenger Deep Sea Drilling Project DSDP |
description |
Most species of Late Cretaceous deep-sea benthic foraminifera are believed to be cosmopolitan and therefore to exhibit only minor biogeographical differences. In this preliminary report, six Deep Sea Drilling Project (DSDP) sites from different oceans, paleolatitudes, and paleodepths were analyzed for terminal Cretaceous abyssal-bathyal benthic foraminifera in order to investigate their assumed cosmopolitan distribution and the question of whether different faunal compositions are related to time, different paleolatitudes, and/or different paleodepths. The material studied was obtained from the low-latitude Site 465 (Pacific Ocean), and the intermediate-latitude Sites 384 (North Atlantic) and 356, 516, 525, and 527 (South Atlantic). The material analyzed represents a time slice encompassing the last 20-50 k.y. of the Cretaceous. The faunas contain numerous "Velasco-type" species, such as Gavelinella beccariiformis (White), Cibicidoides velascoensis (Cushman), Nuttallides truempyi (Nuttall), Gaudryina pyramidata Cushman, and various gyroidinoids and buliminids. The results contradict the general assumption of the cosmopolitan nature of Late Cretaceous deep-sea benthic foraminifera advocated in the literature. Only about 9% of the taxa identified were found to be truly "cosmopolitan" through their occurrence at all the sites analyzed. On the basis of correspondence analysis and relative abundance data, three assemblages and three subassemblages were recognized: (1) a bathyal-abyssal assemblage [Nuttallinella sp. A, Cibicidoides hyphalus (Fisher), Valvalabamina sp. evolute form, and Gyroidinoides spp.] at the South Atlantic Sites 356, 516, 525, and 527, divided into three subassemblages, namely (a) a middle bathyal subassemblage [Eouvigerina subsculptura McNeil and Caldwell, Truaxia aspera (Cushman), and G. pyramidata] at Sites 516 and 525, (b) a lower bathyal subassemblage [Osangularia? sp., Pyramidina rudita (Cushman and Parker), and Quadrimorphina camerata (Brotzen)] at Site 356, and (c) an abyssal subassemblage [Gyroidinoides sp. C, Hyperammina-Bathysiphon, Gyroidinoides beisseli (White), and Globorotalites sp. B] at Site 527; (2) an abyssal assemblage [Buliminella cf. plana (Cushman and Parker) and Bulimina incisa Cushman] at the North Atlantic Site 384; and (3) a middle bathyal assemblage [Vulvulina sp. A, Osangularia navarroana (Cushman), Alabamina? sp., Bulimina velascoensis (Cushman), Spiroplectammina spp. calcareous forms, and Bulimina trinitatensis Cushman and Jarvis] at the Pacific Site 465. |
format |
Article in Journal/Newspaper |
author |
Widmark, Joen G V Malmgren, Bjorn |
author_facet |
Widmark, Joen G V Malmgren, Bjorn |
author_sort |
Widmark, Joen G V |
title |
Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
title_short |
Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
title_full |
Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
title_fullStr |
Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
title_full_unstemmed |
Total number of benthic foraminifera in sediments below the K/T boundary in the Atlantic and Pacific Ocean, supplement to: Widmark, Joen G V; Malmgren, Bjorn (1992): Biogeography of terminal Cretaceous deep-sea benthic foraminifera from the Atlantic and Pacific Oceans. Palaeogeography, Palaeoclimatology, Palaeoecology, 92(3-4), 375-405 |
title_sort |
total number of benthic foraminifera in sediments below the k/t boundary in the atlantic and pacific ocean, supplement to: widmark, joen g v; malmgren, bjorn (1992): biogeography of terminal cretaceous deep-sea benthic foraminifera from the atlantic and pacific oceans. palaeogeography, palaeoclimatology, palaeoecology, 92(3-4), 375-405 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1992 |
url |
https://dx.doi.org/10.1594/pangaea.705512 https://doi.pangaea.de/10.1594/PANGAEA.705512 |
long_lat |
ENVELOPE(-101.500,-101.500,-72.083,-72.083) ENVELOPE(-66.117,-66.117,-65.750,-65.750) ENVELOPE(-65.517,-65.517,-66.283,-66.283) |
geographic |
Pacific Caldwell Malmgren Widmark |
geographic_facet |
Pacific Caldwell Malmgren Widmark |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1016/0031-0182(92)90092-j |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.705512 https://doi.org/10.1016/0031-0182(92)90092-j |
_version_ |
1766131727398338560 |