Middle Eocene vertebrate fauna from the Aridal Formation, Sabkha of Gueran, southwestern Morocco Author Zouhri, Samir Author Gingerich, Philip D. Author Khalloufi, Bouziane Author Bourdon, Estelle Author Adnet, Sylvain Author Jouve, Stéphane Author Elboudali, Najia Author Amane, Ayoub Author Rage, Jean-Claude Author Tabuce, Rodolphe text Geodiversitas 2021 2021-03-11 43 5 121 150 journal article 7746 10.5252/geodiversitas2021v43a5 e42658a2-0e15-4e90-9bc5-0d00cbcbd781 1638-9395 4605963 urn:lsid:zoobank.org:pub:697FC553-E37B-4EF9-97A4-950E4DEE246C Hemipristis curvatus (Dames, 1883) EXAMINED MATERIAL. — Five broken isolated teeth, figured material includes FSAC Bouj-343. DESCRIPTION An upper tooth ( Fig. 4D ) belonging to the snuggle tooth shark Hemipristis curvatus was recovered from the Locality 1. The crown is compressed labio-lingually, slanted distally with unserrated mesial cutting edge. REMARKS The snuggle tooth shark, Hemipristis curvatus is known in all the tropical seas during the late Eocene, from Western Neotethys (e.g., Case & Cappetta 1990 ; Mustafa & Zalmout 2002 ; Underwood et al. 2011 ) to western central Atlantic (e.g., Case & Borodin 2000 ). Its occurrence in the middle Eocene is less usual ( Underwood et al. 2011 ). Only two teeth were recorded in MI ( Underwood et al. 2011 ), it becomes common from the GE A-C (around the FIG. 3. — Elasmobranchii from Sabkha of Gueran collected around the Archaeocete whale carcasses.(A-F) Tethylamna cf. twiggsensis : A , FSAC Bouj-331 anterior lower tooth in labial view; B , FSAC Bouj-332 anterolateral lower tooth in labial view; C , FSAC Bouj-333 lateral lower tooth in ( C1 ) labial and ( C2 ) lingual views; D , FSAC Bouj-334 posterior lower tooth in labial view; E , FSAC Bouj-335 lateral lower tooth in ( E1 ) labial and ( E2 ) lingual views; F , FSAC Bouj-336 anterior upper tooth in ( F1 ) labial and ( F2 ) lingual views. G -I , Galeocerdo cf. eaglesomei ; G , FSAC Bouj-337 anterior tooth in ( G1 ) labial and ( G2 ) lingual views; H , FSAC Bouj- 338 anterolateral tooth in lingual view; I , FSAC Bouj-339 lateral tooth in ( I1 ) labial and ( I2 ) lingual views. Scale bar: 10 mm. Bartonian/Priabonian boundary) and within the rest of the BQ (Priabonian).