Newell, N. D.; Boyd, D. W. (1995). Pectinoid bivalves of the Permian-Triassic crisis. Bulletin of the American Museum of Natural History. 227: 1-95, figs. 1-64.
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Newell, N. D.; Boyd, D. W.
1995
Pectinoid bivalves of the Permian-Triassic crisis
Bulletin of the American Museum of Natural History