Report

Sudden Productivity Collapse Associated with the Triassic-Jurassic Boundary Mass Extinction

Science  11 May 2001:
Vol. 292, Issue 5519, pp. 1148-1151
DOI: 10.1126/science.1058574

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Abstract

The end-Triassic mass extinction is one of the five most catastrophic in Phanerozoic Earth history. Here we report carbon isotope evidence of a pronounced productivity collapse at the boundary, coincident with a sudden extinction among marine plankton, from stratigraphic sections on the Queen Charlotte Islands, British Columbia, Canada. This signal is similar to (though smaller than) the carbon isotope excursions associated with the Permian-Triassic and Cretaceous-Tertiary events.

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