Atlantobatis acrodonta

Guinot, Hautier, Sambou & Martin, 2023


Classification: Elasmobranchii Rhinopristiformes 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
Atlantobatis acrodonta
Holotype: LSB: SN2012-79;


Description:


Citation: Atlantobatis acrodonta 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 broader than high; triangular crown in occlusal view with elliptical occlusal crown face. Thick transverse crest, subhorizontal or convex in its medial region, situated below the marginal angles in lingual view. Lingual crown face high, abrupt, and concave in profile view with marked median articular concavity and faint median uvula. Occlusal face is high, labio-lingually compressed, and triangular in lingual view. Sharp and lingually projected occlusal crest connecting the transverse crest lingually and separating the occlusal face into lingual and labial areas. Lingual area concave with light irregular ornament. Labial area of occlusal face convex with short and rather coarse vertical folds near basal edge. Coarsely ornamented labial crown face separated from occlusal face by an irregular secondary crest. Labial crown face with very developed median protuberance. Root low, bilobate and narrower near the crown. Root lobes triangular with rounded angles in basal view. Root lobes varying from as broad as long to mesiodistally expanded. Nutritive groove wide and rather deep with central foramen in labial position.

Remarks
shark-references Species-ID=16485;
type species of Atlantobatis Guinot, Hautier, Sambou & Martin, 2023 [31795] by monotypy (Art. 68.3 ICZN);

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