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Gideonmantellia, new ornithopod from Early Cretaceous of Spain



From: Ben Creisler
bcreisler@gmail.com

A new online paper:

José Ignacio Ruiz-Omeñaca, José Ignacio Canudo, Gloria Cuenca-Bescós,
Penélope Cruzado-Caballero, José Manuel Gasca & Miguel Moreno-Azanza
(2012)
A new basal ornithopod dinosaur from the Barremian of Galve, Spain.
Comptes Rendus Palevol (advance online publication)
http://dx.doi.org/10.1016/j.crpv.2012.06.001
http://www.sciencedirect.com/science/article/pii/S1631068312000784

A partially articulated postcranial skeleton of a small ornithischian
dinosaur, Gideonmantellia amosanjuanae nov. gen. et sp., from the
Early Cretaceous of Galve (Teruel province, Spain) is described. It
was recovered in an outcrop of fluvial red clays from the Camarillas
Formation, which is Barremian in age. This partial skeleton is
recognised as a new ornithopod taxon by the following autapomorphies:
(1) postacetabular process of the ilium with a brevis shelf that is
noticeably medially expanded in its cranial part but narrow and
horizontal in its caudal part; (2) rod-like prepubic process with its
anterior end twisted and expanded; and (3) L-shaped first chevron. Our
phylogenetic analysis indicates that Gideonmantellia represents a
basal ornithopod taxon more derived than Orodromeus, the “Asian clade”
(which includes Haya and others) and Hypsilophodon.Comptes Rendus
Palevol (advance online publication)