Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events
During the Late Cretaceous, marine organisms experienced significant changes in their biodiversity. These diversity changes were influenced, particularly, by the Oceanic Anoxic Event 2 near the Cenomanian/Turonian boundary (93.6 Ma). Here, stratigraphic ranges of 80 marine macroinvertebrate...
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| Format: | Article |
| Language: | English |
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Faculty of Mining and Geology, Belgrade
2011-01-01
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| Series: | Geološki Anali Balkanskoga Poluostrva |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-0608/2011/0350-06081172029R.pdf |
| _version_ | 1818263839283609600 |
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| author | Ruban Dmitry A. Forster Astrid Desmares Delphine |
| author_facet | Ruban Dmitry A. Forster Astrid Desmares Delphine |
| author_sort | Ruban Dmitry A. |
| collection | DOAJ |
| description | During the Late Cretaceous, marine organisms experienced significant changes
in their biodiversity. These diversity changes were influenced, particularly,
by the Oceanic Anoxic Event 2 near the Cenomanian/Turonian boundary (93.6
Ma). Here, stratigraphic ranges of 80 marine macroinvertebrate genera
(cephalopods, brachiopods, gastropods, corals, and echinoids) were employed
to assess the Late Cretaceous biodiversity dynamics in the Eastern Caucasus,
which covered a large region located in the northern Neo-Tethys Ocean. Our
results outline three prominent diversity minima, which occurred in the late
Cenomanian-late Turonian, the early Santonian-late Campanian, and the late
Maastrichtian. Probably, the latter two were just local. Despite of some
differences in trends between the regional and global marine biodiversity
dynamics, the late Cenomanian-late Turonian biotic crisis appeared both on
the regional and global scales and was probably a long-term consequence of
the Oceanic Anoxic Event 2. Oxygen depletion and eustaticallydriven shoreline
shifts are considered as plausible causes of the observed biodiversity
dynamics. |
| first_indexed | 2024-12-12T19:25:23Z |
| format | Article |
| id | doaj.art-a4ef4f02a04c4ce1ae3368483f39264e |
| institution | Directory Open Access Journal |
| issn | 0350-0608 2406-0747 |
| language | English |
| last_indexed | 2024-12-12T19:25:23Z |
| publishDate | 2011-01-01 |
| publisher | Faculty of Mining and Geology, Belgrade |
| record_format | Article |
| series | Geološki Anali Balkanskoga Poluostrva |
| spelling | doaj.art-a4ef4f02a04c4ce1ae3368483f39264e2022-12-22T00:14:31ZengFaculty of Mining and Geology, BelgradeGeološki Anali Balkanskoga Poluostrva0350-06082406-07472011-01-01201172294610.2298/GABP1172029R0350-06081172029RLate Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global eventsRuban Dmitry A.0Forster Astrid1Desmares Delphine2Division of Mineralogy and Petrography, Geology and Geography Faculty, Southern Federal University, Rostov-na-Donu, RussiaLausner Weg A, Leipzig, GermanyUPMC Universitj Paris, UMR, CRP, Paris, FranceDuring the Late Cretaceous, marine organisms experienced significant changes in their biodiversity. These diversity changes were influenced, particularly, by the Oceanic Anoxic Event 2 near the Cenomanian/Turonian boundary (93.6 Ma). Here, stratigraphic ranges of 80 marine macroinvertebrate genera (cephalopods, brachiopods, gastropods, corals, and echinoids) were employed to assess the Late Cretaceous biodiversity dynamics in the Eastern Caucasus, which covered a large region located in the northern Neo-Tethys Ocean. Our results outline three prominent diversity minima, which occurred in the late Cenomanian-late Turonian, the early Santonian-late Campanian, and the late Maastrichtian. Probably, the latter two were just local. Despite of some differences in trends between the regional and global marine biodiversity dynamics, the late Cenomanian-late Turonian biotic crisis appeared both on the regional and global scales and was probably a long-term consequence of the Oceanic Anoxic Event 2. Oxygen depletion and eustaticallydriven shoreline shifts are considered as plausible causes of the observed biodiversity dynamics.http://www.doiserbia.nb.rs/img/doi/0350-0608/2011/0350-06081172029R.pdfmarine macroinvertebratesdiversitybiotic crisisOAE2Eastern CaucasusCenomanian/TuronianLate Cretaceous |
| spellingShingle | Ruban Dmitry A. Forster Astrid Desmares Delphine Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events Geološki Anali Balkanskoga Poluostrva marine macroinvertebrates diversity biotic crisis OAE2 Eastern Caucasus Cenomanian/Turonian Late Cretaceous |
| title | Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events |
| title_full | Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events |
| title_fullStr | Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events |
| title_full_unstemmed | Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events |
| title_short | Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events |
| title_sort | late cretaceous marine biodiversity dynamics in the eastern caucasus northern neo tethys ocean regional imprints of global events |
| topic | marine macroinvertebrates diversity biotic crisis OAE2 Eastern Caucasus Cenomanian/Turonian Late Cretaceous |
| url | http://www.doiserbia.nb.rs/img/doi/0350-0608/2011/0350-06081172029R.pdf |
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