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Subject "Batrachia, Fossil"
Revision of the Amphibia and Pisces of the Permian of North America,
By: Case, E. C. - Hussakof, Louis, - Sellards, Elias Howard,
Publication info: Washington, D.C.,Carnegie Institution of Washington,1911.
Contributed by: Cornell University Library
Subjects: Batrachia, Fossil Fishes, Fossil Insects, Fossil North America Paleontology Permian