Ctenacanthus similis

St. John & Worthen, 1875

Classification: Elasmobranchii Ctenacanthiformes incert. fam.

Reference of the original description

St.John, O.H. & Worthen, A.H. (1875)
Palaeontolgoy of Illinois. Descriptions of fossil fishes. Geological Survey of Illinois, 6, 245–488

Types
Ctenacanthus similis

Description:

Citation: Ctenacanthus similis St. John & Worthen, 1875: 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=15102;

References

St.John, O.H. & Worthen, A.H. (1875)
Palaeontolgoy of Illinois. Descriptions of fossil fishes. Geological Survey of Illinois, 6, 245–488