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ABSTRACT:
SUBMITTER: Onoue T
PROVIDER: S-EPMC4937377 | biostudies-literature | 2016 Jul
REPOSITORIES: biostudies-literature
Onoue Tetsuji T Sato Honami H Yamashita Daisuke D Ikehara Minoru M Yasukawa Kazutaka K Fujinaga Koichiro K Kato Yasuhiro Y Matsuoka Atsushi A
Scientific reports 20160708
Extinctions within major pelagic groups (e.g., radiolarians and conodonts) occurred in a stepwise fashion during the last 15 Myr of the Triassic. Although a marked decline in the diversity of pelagic faunas began at the end of the middle Norian, the cause of the middle Norian extinction is uncertain. Here we show a possible link between the end-middle Norian radiolarian extinction and a bolide impact. Two palaeoenvironmental events occurred during the initial phase of the radiolarian extinction ...[more]