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Hinge grades in the evolution of crassatellacean bivalves as revealed by Permian genera

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By: Boyd, Donald W. - Newell, Norman D.,

Publication info: New York, N.Y, American Museum of Natural History, [1968]

Holding Institution: American Museum of Natural History Library

Subjects: 56.4,1C(115) Astartella aueri Crassatellacea Crassatellidae, Fossil Evolution Mollusks, Fossil Oriocrassatella elongata Paleontology Permian Wind River Range Wyoming