Английская Википедия:Campodus

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Campodus is an extinct genus of eugeneodont holocephalans from the Carboniferous.[1][2] Likely one of the earliest and most basal caseodontoids, it can be characterized by its broad, ridge-ornamented crushing teeth made of various types of dentine. The type species, C. agassizianus, was originally described in 1844 based on a small number of teeth from the Namurian of Belgium.[3]

Additional fossils have been referred to the genus. These include Belgian specimens referred by Lohest (1884), fossils from Missouri referred by Zangerl (1981), and symphyseal tooth-whorls from Nebraska and Kansas referred by Eastman (1902).[4] The tooth whorls were given their own species, C. variabilis. They shared some similarity to a massive "Agassizodus" jaw apparatus found in Osage, Kansas and described by St. John & Worthen (1875). This has led some authors to the conclusion that Agassizodus and Campodus were synonyms.[5] However, others note that clearly identifiable Campodus teeth have not been found in the same areas from which Agassizodus was originally described.[4] Ginter (2018) concluded that Eastman's "C. variabilis" and St. John & Worthen (1875)'s "Agassizodus" belonged to neither Campodus nor Agassizodus, and instead represented a new unnamed genus. Ginter additionally referred a specimen from Derbyshire, England to Campodus agassizianus.[3]

References

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Шаблон:Paleo-holocephalan-stub

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  2. Шаблон:Cite book
  3. 3,0 3,1 Шаблон:Cite journal
  4. 4,0 4,1 Шаблон:Cite book
  5. Шаблон:Cite journal