Himantura souarfortuna

Adnet et al., 2020


Classification: Elasmobranchii Myliobatiformes Dasyatidae

Reference of the original description
Adnet, S. & Marivaux, L. & Cappetta, H. & Charruault, A.-L. & Essid, E.M. & Jiquel, S. & Ammar, H.K. & Marandat, B. & Marzougui, W. & Merzeraud, G. & Temani, R. & Vianey-Liaud, M. & Tabuce, R. (2020)
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38

Types
Himantura souarfortuna
Holotype: NOM: KEB 1-194;


Description:


Citation: Himantura souarfortuna Adnet et al., 2020: 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 Adnet et al., 2020 [28754]: Fossil Himantura only known by isolated teeth reaching a large size (4 mm long). The heterodonty is weak with only molariform teeth without cusp. It differs from the others representatives of urogymnins known to date by having teeth with a globular crown marked by a transversal keel, rarely cutting, and often bombed and striated by numerous regular vertical ridges, a finely rugose labial face, and a low root with well-separated lobes.

Remarks
shark-references Species-ID=16006;

References
Adnet, S. & Marivaux, L. & Cappetta, H. & Charruault, A.-L. & Essid, E.M. & Jiquel, S. & Ammar, H.K. & Marandat, B. & Marzougui, W. & Merzeraud, G. & Temani, R. & Vianey-Liaud, M. & Tabuce, R. (2020)
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38
DOI: 10.26879/1085