Selective extinction among end-Triassic European bivalves

C. A. McRoberts, C. R. Newton

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

Bivalve data from Lombardia (Italy), Northern Calcareous Alps (Austria and Germany), and northwest Europe (England and Wales) provide the biologic signal of selective extinction to compare two competing extinction hypotheses: (1) sea-level change and associated anoxia and (2) reduced primary productivity. The end-Triassic extinction was independent of body size and geographic distribution. Species from the three regions show a significantly greater proportion of infaunal bivalve extinction. The greater survival of epifaunal bivalves is correlated to their more efficient feeding. The pattern is consistent with a reduction of primary productivity. -from Authors

Original languageEnglish (US)
Pages (from-to)102-104
Number of pages3
JournalGeology
Volume23
Issue number2
DOIs
StatePublished - Jan 1 1995

ASJC Scopus subject areas

  • Geology

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