Amamriabatis, Adnet & Marivaux & Cappetta & Charruault & Essid & Jiquel & Ammar & Marandat & Marzougui & Merzeraud & Temani & Vianey-Liaud & Tabuce, 2020

Adnet, Sylvain, Marivaux, Laurent, Cappetta, Henri, Charruault, Anne-Lise, Essid, El Mabrouk, Jiquel, Suzanne, Ammar, Hayet Khayati, Marandat, Bernard, Marzougui, Wissem, Merzeraud, Gilles, Temani, Rim, Vianey-Liaud, Monique & Tabuce, Rodolphe, 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, Palaeontologia Electronica (a 38) 23 (2), pp. 1-62 : 41

Genus AMAMRIABATIS nov. gen zoobank.org/ 93815E11-B349-4343-80C0-74B09CED6E79

Type species. Amamriabatis heni nov. sp.

Etymology. Refers to Amamria, the hamlet located on the southeastern foothill of Djebel el Kébar, near the KEB-1 fossil-bearing locality, in recognition to the hospitality of the inhabitants of this hamlet, and Greek “batis” for rays.

Temporal. Middle Bartonian ( Tunisia) to possibly Late Eocene ( Egypt).

Diagnosis. Mobulid-like taxon known only by isolated teeth. Dentition of supposed alternating rows with teeth weakly joined. The dentition comprises teeth more or less elongated with roughly hexagonal-shaped to teeth bearing a median keel expended lingually. The tooth crown is relatively low, slightly displaced lingually with a smooth labial visor, particularly pinched, and a lingual face that could be, at the contrary, strongly ornamented, with sinuous folds and grooves under the developed lingual keel. The occlusal face of the crown is strongly flat and smooth. The root is narrow compared to the crown, and bears irregular lobes with rounded bases, widely separated by deep furrows.