Porosteognathus
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Template:Short description Template:Automatic taxobox Porosteognathus is an extinct genus of therocephalian therapsids. Remains have been found at Isheevo in Russia (Republic of Tatarstan).[1] It is known from the Middle Permian.[2]
References
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- ↑ Michael J. Benton, Mikhail A. Shishkin, David M. Unwin, and Evgenii N. Kurochkin (2003): The Age of Dinosaurs in Russia and Mongolia, Cambridge University Press Template:ISBN
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