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The AAPG/Datapages Combined Publications Database

CSPG Special Publications

Abstract


Pangea: Global Environments and Resources — Memoir 17, 1994
Pages 813-822
Boundaries

Two Phases of the End-Permian Mass Extinction

Jin Yugan, Zhang Jing, Shang Qinghua

Abstract

The end-Permian extinction, once regarded as an event spanning the Guadalupian to the Lopingian, actually occurred in two distinct phases. The first, a pre-Lopingian event associated with a major regression, appeared in the latest Guadalupian. Victims of this event were mostly endemic forms eliminated by closing of epicontinental seas around Pangea and dominant inhabitants of open seas in the Paleotethys. During the Lopingian Epoch marine faunas were well developed in limited shelf seas of the Paleotethys, but suffered no dramatic change. The collapse of marine ecosystems at the end of the Lopingian was most likely triggered by a sudden and widespread flooding over all relict shelves, following maximum emergence of epicontinental seas around Pangea.


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