Ginglymodi, Cope, 1872

Allain, Ronan, Vullo, Romain, Rozada, Lee, Anquetin, Jérémy, Bourgeais, Renaud, Goedert, Jean, Lasseron, Maxime, Martin, Jeremy E., Pérez-García, Adán, Fabrègues, Claire Peyre De, Royo-Torres, Rafael, Augier, Dominique & Bailly, Gilles, 2022, Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente Lagerstätte (southwestern France): implications for continental faunal turnover at the J / K boundary, Geodiversitas 44 (25), pp. 683-752 : 693

Ginglymodi indet. ( Fig. 7 A-D)

DESCRIPTION

Material from Angeac-Charente mainly includes isolated teeth and ganoid scales( Fig.7 A-D).Most teeth show a typical sub-hemispheric, unornamented crown. A small tip is sometimes developed at the apex of the crown. Scales are relatively thick and rhomboid in shape. An anteroventral process can be present in addition to the anterodorsal process. The posterior margin is not serrated. Based on the available material, one or two ginglymodian taxa may be present,with possibly a callipurbeckiid (Semionotiformes) and/or a lepidotid (Lepisosteiformes)(sensu López-Arbarello& Sferco 2018).

Figures

FIG. 7. — Actinopterygian remains from Angeac-Charente: A, B, isolated tooth of Ginglymodi indet. (ANG M-30) in anterior/posterior (A) and occlusal (B) views; C, Ginglymodi indet. scale (ANG M-68); D, Ginglymodi indet. scale (ANG M-67); E, upper jaw fragment of Amiiformes indet. (ANG M-62) in lingual view; F, left dentary of Amiiformes indet. (ANG M-117) in labial view; G, H, fragmentary left dentary of Amiiformes (ANG 15-4062) in lingual (G) and labial (H) views. Scale bar represents: A, B, 1 mm; C, 4 mm; D, 2 mm; E, 2.5 mm; F, 10 mm; G, H, 5 mm.