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Revision of the Pelycosauria of North America / by E.C. Case.
By: Case, E. C.
Publication info: Washington, D.C. :Carnegie Institution of Washington,1907.
Contributed by: University of British Columbia Library (archive.org)
Subjects: Pelycosauria
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The structure of the Columella auris in the Pelycosauria / by E. D. Cope.
By: Cope, E. D.
Publication info: [Washington :s.n.,1885].
Contributed by: Harvard University, MCZ, Ernst Mayr Library
Subjects: Columella auris Pelycosauria Reptiles, Fossil
BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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