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Cacops (Amphibia : Labyrinthodontia) from the Fort Sill Locality, Lower Permian of Oklahoma / John R. Bolt --.
By: Bolt, John R., - Field Museum of Natural History.
Publication info: Chicago :Field Museum of Natural History,1977.
Contributed by: University of Illinois Urbana Champaign
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Osteology, function, and evolution of the Trematopsid (Amphibia: Labyrinthodontia) nasal region / [by] John R. Bolt --.
By: Bolt, John R.,
Publication info: Chicago :Field Museum of Natural History,1974.
Contributed by: University of Illinois Urbana Champaign
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A trematopsid skull from the Lower Permian, and analysis of some characters of the dissorophoid (Amphibia, Labyrinthodontia) otic notch / John R. Bolt.
By: Bolt, John R.,
Publication info: Chicago :Field Museum of Natural History,1974.
Contributed by: University of Illinois Urbana Champaign
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