Ctenoptychius semicircularis
Newberry & Worthen, 1866
Classification: Euchondrocephali Petalodontiformes Petalorhynchidae
Reference of the original description
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
Types
Ctenoptychius semicircularis
Ctenoptychius semicircularis
Description:
Citation: Ctenoptychius semicircularis Newberry & Worthen, 1866: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2025
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Remarks
shark-references Species-ID=12568;
synonym of Peripristis benniei after Eastman (1902) p. 391 [28643];
shark-references Species-ID=12568;
synonym of Peripristis benniei after Eastman (1902) p. 391 [28643];
References
Type and figured specimens of fossil vertebrates in the collection of the University of Kansas Museum of Natural History. Part I. Fossil Fishes. University of Kansas, Museum of Natural History, Miscellaneous Publication, 73: 1–53
L'evoluzione del pescecane. 1a Parte Notizario del Gruppo Mineralogico Florentino (Florence, Italy), 2(3), 20–22
Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179, 1–868
Beschreibung der fossilen Fische. Bericht über die Geologische Aufnahme von Ohio. II. Band. Geologie und Paläontologie. II. Theil. Paläontologie, 1–64
Description of fossil fishes. Report of the Geological Survey of Ohio, 2(2), 1–64
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
Type and figured specimens of fossil vertebrates in the collection of the University of Kansas Museum of Natural History. Part I. Fossil Fishes. University of Kansas, Museum of Natural History, Miscellaneous Publication, 73: 1–53
L'evoluzione del pescecane. 1a Parte Notizario del Gruppo Mineralogico Florentino (Florence, Italy), 2(3), 20–22
Bibliography and catalogue of the fossil Vertebrata of North America. Bulletin of the United States Geological and Geographical Survey of the Territories, 179, 1–868
Beschreibung der fossilen Fische. Bericht über die Geologische Aufnahme von Ohio. II. Band. Geologie und Paläontologie. II. Theil. Paläontologie, 1–64
Description of fossil fishes. Report of the Geological Survey of Ohio, 2(2), 1–64
Descriptions of new species of vertebrates, mainly from the Sub-Carboniferous Limestome and Coal Measures of Illinois. Geological Survey of Illinois, 2, 9–134
