Middle Mississippian Blastoid Extinction Event

descriptionPublicationkeyboard_double_arrow_right Article 06 May 1988 English Publisher:American Association for the Advancement of Science (AAAS)Journal:Science, volume 240, pages 796-798 (issn: 0036-8075, eissn: 1095-9203,

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Authors: W I, Ausich; D L, Meyer; J A, Waters;

doi: 10.1126/science.240.4853.796

pmid: 17741452

Middle Mississippian Blastoid Extinction Event

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Abstract

The Middle Mississippian blastoid (Phylum Echinodermata) extinction event (about 340 million years ago) was a rapid, habitat-specific extinction. Blastoids became rare or absent in shallow-water environments after the extinction, and this change was probably synchronous worldwide. Onshore-offshore habitat shifts have been recognized as an important historical trend among marine benthos. Unlike trends exhibited by other groups, blastoids appear to have repopulated shallow-water habitats after a period of diminished diversity and abundance.

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