PERSONAL DE APOYO
ISASI Marcelo Pablo
artículos
Título:
Upper Jurassic sauropods in the Chilean Patagonia.
Autor/es:
SALGADO, LEONARDO; NOVAS, FERNANDO E.; SUAREZ, MANUEL; DE LA CRUZ, RITA; MARCELO P. ISASI
Revista:
AMEGHINIANA
Editorial:
ASOCIACION PALEONTOLOGICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2015
ISSN:
0002-7014
Resumen:
A description is provided of the first sauropod remains (i.e., isolated vertebrae and appendicular bones) from the Late Jurassic ofAysén, in Chilean Patagonia (Toqui Formation, late Tithonian). Although the bones found are fragmentary, they still allow the recognition of anunsuspected sauropod diversity for this period in South America. The materials suggest the presence of at least three different sauropodlineages: an indeterminate group of sauropods, possible Titanosauriformes, and Diplodocoidea. A phylogenetic analysis of this last cladesupports the placement of the remains within Diplodocinae and also provides the first unequivocal record of this clade in Late Jurassic rocksof South America. These records provide important information about the poorly known evolutionary history of sauropods in South Americabefore the Cretaceous.
