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Full-Text Articles in Paleobiology
Cenozoic Mass Extinctions In The Deep Sea; What Disturbs The Largest Habitat On Earth?, Ellen Thomas
Cenozoic Mass Extinctions In The Deep Sea; What Disturbs The Largest Habitat On Earth?, Ellen Thomas
Ellen Thomas
No abstract provided.
Biogeography Of The Late Paleocene Benthic Foraminiferal Extinction, Ellen Thomas
Biogeography Of The Late Paleocene Benthic Foraminiferal Extinction, Ellen Thomas
Ellen Thomas
During the Late Paleocene Thermal Maximum (LPTM) benthic foraminifera at middle bathyal and greater depths suffered extinction of 30-50% of species during a few thousand years. Extinction was less severe at neritic to upper bathyal depths, where temporary changes in faunal composition prevailed. Pre-extinction deep-sea faunas were cosmopolitan and diverse, and contained heavily calcified species. Immediate post-extinction faunas were more variable geographically, exhibited low diversity, and were dominated by thin-walled calcareous or agglutinated taxa, possibly because CaCO3 dissolution increased globally from neritic to abyssal depths just before the extinction. These assemblages were dominated either by long-lived taxa such as Nuttallides …