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A new Triassic procolophonid from Pennsylvania

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By: Colbert, Edwin H. - Waltz, Norman.

Publication info: New York, N.Y, American Museum of Natural History, [1960]

Holding Institution: American Museum of Natural History Library

Subjects: 56.81,1S(1161:74.8) Lancaster County Paleontology Pennsylvania Reptiles, Fossil Sphodrosaurus pennsylvanicus Triassic