INVESTIGADORES
DE VALAIS Silvina
artículos
Título:
Dinosaur footprints in the Early Jurassic of Patagonia (Marifil Volcanic Complex, Argentina): biochronological and palaeobiogeographical inferences
Autor/es:
DÍAZ-MARTÍNEZ, IGNACIO; GONZÁLEZ, SANTIAGO N.; DE VALAIS, SILVINA
Revista:
GEOLOGICAL MAGAZINE
Editorial:
CAMBRIDGE UNIV PRESS
Referencias:
Año: 2017 p. 1 - 9
ISSN:
0016-7568
Resumen:
A new dinosaurian track-bearing site, with tridactyl footprintsfrom the Lower Jurassic (pre-middle Pliensbachian)volcanogenic and epiclastic rocks of the Marifil VolcanicComplex, Patagonia, Argentina, is presented and described.The best-preserved footprint, classified as cf. Anomoepus,confirms the utility of the Anomoepus-like tracks for theEarly Jurassic biochronology. Palaeobiogeographically, thisrecord supports the idea that the South American Early Jurassicdinosaur fauna presents elements of Pangaean distribution,and others with Gondwanan relationships with prevalentsouthern African affinities. Dinosaur records from SouthAmerica between the Rhaetian and the Pliensbachian arevery scarce, and this find contributes to the knowledge ofearly radiation and evolution of Dinosauria.
