INVESTIGADORES
GONZALEZ santiago Nicolas
artículos
Título:
Dinosaur footprints in the Early Jurassic of Patagonia (Marifil Volcanic Complex, Argentina): biochronological and paleobiogeographical inferences
Autor/es:
IGNACIO DIAZ-MARTINEZ; SANTIAGO N. GONZÁLEZ; SILVINA DE VALAIS
Revista:
GEOLOGICAL MAGAZINE
Editorial:
CAMBRIDGE UNIV PRESS
Referencias:
Lugar: Cambridge; Año: 2017 vol. 154 p. 914 - 922
ISSN:
0016-7568
Resumen:
A new dinosaurian track-bearing site, with tridactyl footprints from the Lower Jurassic (pre-middle Pliensbachian) volcanogenic and epiclastic rocks of the Marifil Volcanic Complex, Patagonia, Argentina, is presented and described. The best-preserved footprint, classified as cf. Anomoepus, confirms the utility of the Anomoepus-like tracks for the Early Jurassic biochronology. Palaeobiogeographically, this record supports that the South American Early Jurassic dinosaur fauna presents elements of Pangaean distribution and other with Gondwanan relationships with prevalence of southern African affinities. The dinosaur record from South America between Rhaetian and Pliensbachian is very scarce, therefore this find contributes to the knowledge of early radiation and evolution of Dinosauria.
