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By: Von Bitter, Peter H. - Merrill, Glen K. - Royal Ontario Museum.Edition:Publication info: Toronto, Royal Ontario Museum, 1990Volume:Series:Holding Institution: Royal Ontario MuseumSubjects: (Timothy R.) 1931- Carr, T. R Clark, David Leigh, Conodonts Paleontology Paleozoic Permian Hindeodus and Diplognathodus : implication Statistical methodsBHL Collections: