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Walterosteus : ウィキペディア英語版 | Walterosteus
''Walterosteus'' is a genus of small selenosteid arthrodire placoderms known from the Upper Frasnian Kellwasserkalk facies of Late Devonian Germanyand Morocco. ''Walterosteus'' is very similar to the other Kellwasserkalk selenosteids. This similarity lead Denison (1978) to synonymize the genus, together with ''Ottonosteus'' (''O. jaekeli'' = ''E. hermanni''), into ''Enseosteus'', claiming that the former two genera are too similar to ''Enseosteus'' to merit separate genus status.〔 Rücklin (2011) agrees with Denison's synonymizing of ''Ottonosteus'', but rejects Denison's synonymization of ''Walterosteus'', claiming how ''Walterosteus'' has a contact between the rostral plate and the pineal plate, which ''Enseosteus'' does not.〔 ==Etymology== The genus was named by Erik Stensiö to commemorate the contributions done by Walter Gross, a German specialist on Paleozoic fishes, and his important contributions to the understanding of the overall anatomy of arthrodire placoderms.
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