Ptychosphenodon is an extinct genus of prehistoric amphibian.[1]
Ptychosphenodon | |
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Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
Genus: | Ptychosphenodon
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Species: | P. browni
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See also
editReferences
edit- ^ Science Progress in the Twentieth Century. John Murray. 1908. p. 521.