LOS NOTOSUCHIA DEL CRETACICO DE AMERICA DEL SUR COMO UN NUEVO INFRAORDEN DE LOS MESOSUCHIA (CROCODILIA).

Zulma B. de Gasparini

Abstract


The remains of Notosuchus terrestris (Crocodilia, Mesosuchia) from the Cretaceous of Patagonia (Neuquén ) are described. The characteristics of the other genera originally included in the family Notosuchidae Dollo, 1924 are analyzed. As a
consequence a new family is recognized: Uruguaysuchidae, In accordance with the degree of differentiation of the representatives of these two families it is proposes to assign them to a new Intraorder: Notosuchia. The characteristics of the representatives of this new Infraorder of the Mesosuchia are compared with the other Crocodilia. As a conclusion the Sebecosuchia and Thalattosuchia should be recognized as two other Infraorder (nec Suborder) of the same Mesosuchia Suborder.

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