First fossil record of amiid fishes (Halecomorphi, Amiiformes, Amiidae) from the Late Cretaceous of Uberaba, Minas Gerais State, Brazil

MARTINELLI, AGUSTIN G.; BOGAN, SERGIO; AGNOLIN, FEDERICO L.; OTROS

ALCHERINGA

TAYLOR & FRANCIS LTD

Lugar: Londres; Año: 2012

0311-5518

The first fossil amiid fishes (Halecomorphi, Amiiformes) from the Late Cretaceous Marı´lia Formation (Bauru Group) at Uberaba County,Tria?ngulo Mineiro region (Minas Gerais State, Brazil), are described. The material includes some partial maxillae, a dermopterotic, acleithrum, several vertebral centra and teeth. Features such as the absence of a supramaxillary notch on the dorsal edge of the maxilla, a wideand deep pit on the maxilla for the articulation of the premaxilla, anterior portion of the maxilla with a sub-circular cross-section, teeth withacrodine cup with strong mesial and distal keels, among others, permit confident referral of the material to the Subfamily Vidalamiine(Amiidae), previously recognized in Lower Cretaceous strata of northeasthern Brazil. These specimens constitute the first Late Cretaceousrecord of this group in Brazil and one of the few in South America.