Selective extinction of late Neogene bivalves on the temperate Pacific coast of South America From: Paleobiology | Date: July 1, 2007| Author: Marquet, Pablo A; Rivadeneira, Marcelo M | Copyright Paleontological Society Summer 2007. Provided by ProQuest LLC.Copyright information

Abstract.-

We assessed selective extinction patterns in bivalves during a late Neogene mass extinction event observed along the temperate Pacific coast of South America. The analysis of 99 late Neogene and Quaternary fossil sites (recorded from 7°S to 55°S), yielding ~2800 occurrences and 118 species, revealed an abrupt decline in Lyellian percentages during the late Neogene-Pleistocene, suggesting the existence of a mass extinction that decimated ~66% of the original assemblage. Usi...

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