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The AAPG/Datapages Combined Publications Database

CSPG Special Publications

Abstract


Devonian of the World: Proceedings of the 2nd International Symposium on the Devonian System — Memoir 14, Volume III: Paleontology, Paleoecology and Biostratigraphy, 1988
Pages 71-78
Global Events and Boundaries

Faunal Changes and Events Near the Frasnian-Famennian Boundary of South China

K. Wang, S. Bai

Abstract

Study on the Frasnian- Famennian boundary beds of South China reveals that there are at least three geochemical anomaly beds near the F-F boundary which has been proposed to coincide with the gigas/triangularis boundary. One bed is between the Middle Palmatolepis triangularis Zone and Upper Palmatolepis triangularis Zone, two beds are within the Palmatolepis crepida Zone. The late extinction of the brachiopod fauna occurs near the base of the crepida Zone, the horizon where Atrypacea and Pentameracea became extinct. Data of elemental analyses and microspheres from the anomaly beds supports that the possible cause of the anomalies are extraterrestrial rather than terrestrial.


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