Phosphatodon cretaceus
Guinot, Hautier, Sambou & Martin, 2023
Classification: Elasmobranchii Myliobatiformes incert. fam.
Reference of the original description
The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480
The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480
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.
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;
shark-references Species-ID=16489;
References
The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480
DOI: 10.1016/j.cretres.2023.105480

The Upper Cretaceous elasmobranch fauna from Senegal. Cretaceous Research, 146, Article 105480
DOI: 10.1016/j.cretres.2023.105480







