Ptychotrygon rubyae

Williamson, Kirkland & Lucas, 1993


Classification: Elasmobranchii Rajiformes Ptychotrygonidae

Reference of the original description
Williamson, T.E. & Kirkland, J.I. & Lucas, S.G. (1993)
Selachians from the Greenhorn cyclothem («Middle» Cretaceous: Cenomanian-Turonian), Black Mesa, Arizona, and the paleogeographic distribution of late Cretaceous selachians. Journal of Paleontology, 67(3), 447–474

Types
Ptychotrygon rubyae



Description:


Citation: Ptychotrygon rubyae Williamson, Kirkland & Lucas, 1993: 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=8165;

References
Lucas, S.G. & Heckert, A.B. (2005)
Distribution, age and correlation of Cretaceous fossil vertebrates from Arizona. New Mexico Museum of Natural History and Science, Bulletin, 29, 104–109
Williamson, T.E. & Kirkland, J.I. & Lucas, S.G. (1993)
Selachians from the Greenhorn cyclothem («Middle» Cretaceous: Cenomanian-Turonian), Black Mesa, Arizona, and the paleogeographic distribution of late Cretaceous selachians. Journal of Paleontology, 67(3), 447–474