Campodus is an extinct genus of eugeneodontholocephalans from the Carboniferous.[1][2] Likely one of the earliest and most basalcaseodontoids, 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]
Referencesedit
^ ab"†Campodus de Koninck 1844". Paleobiology Database. Fossilworks. Retrieved 17 December 2021.
^Hay, O.P. (1902). Bibliography and Catalogue of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey. Vol. 179.
^ abGinter, Michał (2018). "The dentition of a eugeneodontiform shark from the Lower Pennsylvanian of Derbyshire, UK" (PDF). Acta Palaeontologica Polonica. 63 (4): 725–735. doi:10.4202/app.00533.2018.
^ abZangerl, R. (1981). Chondrichthyes I – Paleozoic Elasmobranchii. Handbook of Paleoichthyology. Stuttgart: Gustav Fischer Verlag. pp. i–iii, 1–115.
^Eaton, Theodore H. (1 October 1962). "Teeth of Edestid Sharks". University of Kansas Publications, Museum of Natural History. 12 (8): 347–362.
campodus, extinct, genus, eugeneodont, holocephalans, from, carboniferous, likely, earliest, most, basal, caseodontoids, characterized, broad, ridge, ornamented, crushing, teeth, made, various, types, dentine, type, species, agassizianus, originally, described. 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 CampodusTemporal range Carboniferous Visean Bashkirian PreꞒ Ꞓ O S D C P T J K Pg NLife restorationScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ChondrichthyesOrder EugeneodontidaClade CaseodontoideaGenus CampodusKoninck 1844Species 1 C agassizianus Koninck 1844C corrugatus Newberry and Worthen 1870C scitulus Saint John and Worthen 1875C virginianus Saint John and Worthen 1875Additional 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 amp 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 amp 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 edit a b Campodus de Koninck 1844 Paleobiology Database Fossilworks Retrieved 17 December 2021 Hay O P 1902 Bibliography and Catalogue of the Fossil Vertebrata of North America Bulletin of the United States Geological Survey Vol 179 a b Ginter Michal 2018 The dentition of a eugeneodontiform shark from the Lower Pennsylvanian of Derbyshire UK PDF Acta Palaeontologica Polonica 63 4 725 735 doi 10 4202 app 00533 2018 a b Zangerl R 1981 Chondrichthyes I Paleozoic Elasmobranchii Handbook of Paleoichthyology Stuttgart Gustav Fischer Verlag pp i iii 1 115 Eaton Theodore H 1 October 1962 Teeth of Edestid Sharks University of Kansas Publications Museum of Natural History 12 8 347 362 nbsp This article about a prehistoric cartilaginous fish is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Campodus amp oldid 1060816321, wikipedia, wiki, book, books, library,
