Calleonasus is an extinct genus of non-mammalian synapsid from the Anisian Donguz Formation of Russia discovered by synapsid paleontologist Nikolay Kalandadze. See…
Calleonasus is an extinct genus of non-mammalian synapsid from the Anisian Donguz Formation of Russia discovered by synapsid paleontologist Nikolay Kalandadze. See also List of therapsids
References
External links The main groups of non-mammalian synapsids at Mikko's Phylogeny Archive
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