INVESTIGADORES
NOVAS Fernando Emilio
artículos
Título:
New enantiornithinebird(Aves,Ornithothoraces)fromtheLate
Autor/es:
FERNANDO E. NOVAS; FEDERICO L. AGNOLÍN; CARLOS AGUSTÍN SCANFERLA
Revista:
COMPTES RENDUS PALEVOL
Editorial:
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
Referencias:
Año: 2010 p. 1 - 5
ISSN:
1631-0683
Resumen:
A new enantiornithine bird, Intiornis inexpectatus gen. Et sp.nov, is described here. It is based on a partial hindlimb found in beds of the Upper Cretaceous Las Curtiembres Formation (Campanian), North-West Argentina. The new taxon is referred to the family Avisauridae on the basis of its cranially convex third metatarsal. Several features suggest close relationships between Intiornis and the avisaurid Soroavisaurus, from the Lecho Formation (Maastrichtian; North-West Argentina). Intiornis was the size of a sparrow, thus representing the smallest Enantiornithes known from South America. The new species shows adaptations for a perching mode of life. Moreover, the hypothesis suggesting that the flying pterosaur reptiles decrease in taxonomic diversity due to competitive interaction with birds is discussed.
