Ptychotrygon palaeformis
Meyer, 1974 (nomen nudum)
Classification: Elasmobranchii Rajiformes Ptychotrygonidae
Reference of the original description
Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the Gulf Coastal Plain. Unpublished Ph.D. thesis, University of Texas at Arlington, 419 p., 106 fig.
Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the Gulf Coastal Plain. Unpublished Ph.D. thesis, University of Texas at Arlington, 419 p., 106 fig.
Types
Ptychotrygon palaeformis
Ptychotrygon palaeformis
Description:
Citation: Ptychotrygon palaeformis Meyer, 1974 (nomen nudum): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2026
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Remarks
shark-references Species-ID=17764
shark-references Species-ID=17764
References
Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the Gulf Coastal Plain. Unpublished Ph.D. thesis, University of Texas at Arlington, 419 p., 106 fig.

Late Cretaceous elasmobranchs from the Mississippi and East Texas embayments of the Gulf Coastal Plain. Unpublished Ph.D. thesis, University of Texas at Arlington, 419 p., 106 fig.







