Ptychacanthus sp.

Classification: Elasmobranchii Hybodontiformes Tristychiidae

Types
Ptychacanthus sp.

Description:

Citation: Ptychacanthus sp. : In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 02/2025

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Remarks
shark-references Species-ID=13086;

References

Gervais, P. (1852)
Zoologie et paléontologie françaises (1ère édit). Paris, 271 p., 45 pl.