Douglas H Erwin

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The Neoproterozoic era was punctuated by the Sturtian (about 710 million years ago) and Marinoan (about 635 million years ago) intervals of glaciation. In South Australia, the rocks left behind by the glaciations are separated by a succession of limestones and shales, which were deposited at tropical latitudes. Here we describe millimetre-to(More)
We are pleased to reply to Ward et al. (2012) about the stratigraphic record of the Karoo Basin where the terrestrial ecosystem response to the End-Permian extinction is recorded. The present extinction model envisions a marine and terrestrial response coupling. The Permian–Triassic boundary (PTB), the zenith of marine extinction, is recognized at the fi(More)
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