Phosphatodon cretaceus

Guinot, Hautier, Sambou & Martin, 2023


Classification: Elasmobranchii Myliobatiformes incert. fam.

Reference of the original description
Guinot, G. & Hautier, L. & Sambou, B.S. & Martin, J.E. (2023)
The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480

Types
Phosphatodon cretaceus
Holotype: LSB: SN2012-130;


Description:


Citation: Phosphatodon cretaceus Guinot, Hautier, Sambou & Martin, 2023: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026

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Description
Original diagnosis after Guinot, Hautier, Sambou & Martin, 2023 [31795]: Teeth very high with crown broader than root. Lingual face abrupt and concave in profile view. Margino-lingual faces slightly depressed, separated by a wide and faint central vertical bulge the upper region of lingual face. Central uvula wide, short, and triangular, separated from the margino-lingual faces by shallow and broad concavities. Occlusal face inclined lingually and convex both. Lingual crown edge of occlusal face convex, labial outline with concave margino-labial edges and marked mediolabial bulge. Labial crown face is as high as lingual face with labially projected median region. Margino-labial faces flat to slightly concave. Lower edge of labial crown face scalloped with broad and triangular medio-labial protuberance. Crown not ornamented although of irregular surface or rough lingually. Root very high, narrow, and oval in cross-section and constricted above the deep nutritive groove. Root lobes moderately high and mesio-distally compressed. Medio-lingual foramen in a depression located labially to the groove. Several margino-lingual and labial foramina below the crown/root edge and above the root constriction.

Remarks
shark-references Species-ID=16489;

References
Guinot, G. & Hautier, L. & Sambou, B.S. & Martin, J.E. (2023)
The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480
DOI: 10.1016/j.cretres.2023.105480