Psephodus regularis

(St. John & Worthen, 1883)


Classification: Holocephali

Reference of the original description
St.John, O.H. & Worthen, A.H. (1883)
Descriptions of fossil fishes; a partial revision of the Cochliodonts and Psammodonts. Geological Survey of Illinois, 7, 55–264

Synonyms / new combinations and misspellings
Taeniodus regularis

Types
Psephodus regularis



Description:


Citation: Psephodus regularis (St. John & Worthen, 1883): 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=13028;

References
Schnetz, L. & Dunne, E.M. & Feichtinger, I. & Butler, R.J. & Coates, M.I. & Sansom, I.J. (2024)
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
Itano, W.M. (2022)
The Palaeozoic genus Psephodus (Chondrichthyes, Cochliodontiformes) and the transition from teeth to tooth plates in holocephalians. Scottish Journal of Geology, 58(2), Article sjg2021–016
DOI: 10.1144/sjg2021-016
Branson, E.B. (1906)
Fish remains from the Salem Limestone of Indiana. In Cumings E. R., Branson E. B., Beede, J. W. and Smith, E. A. (Eds.), The fauna of the Salem Limestone of Indiana. Rep. Indiana Dept. Geol. Natur. Resources, 30: 1376–1394
Hay, O.P. (1902)
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
St.John, O.H. & Worthen, A.H. (1883)
Descriptions of fossil fishes; a partial revision of the Cochliodonts and Psammodonts. Geological Survey of Illinois, 7, 55–264