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Synopsis of the Extinct Batrachia of North America
E. D. Cope
1868
Article
Proceedings of the Academy of Natural Sciences of Philadelphia
1868:208-221
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Taxa discussed in this work:
Brachydectes
Brachydectes newberryi
Eusauropleura digitata
Isodectes obtusus
Molgophis
Molgophis macrurus
Oestocephalus
Sauropleura
Stegocephali