INVESTIGADORES
CARBALLIDO Jose Luis
artículos
Título:
Evidence of gregariousness in rebbachisaurids (Dinosauria, Sauropoda, Diplodocoidea) from the Early Cretaceous of Neuquén (Rayoso Formation), Patagonia, Argentina
Autor/es:
SALGADO, LEONARDO; CANUDO, JOSÉ I.; GARRIDO, ALBERTO; CARBALLIDO, JOSÉ L.
Revista:
JOURNAL OF VERTEBRATE PALEONTOLOGY
Editorial:
SOC VERTEBRATE PALEONTOLOGY
Referencias:
Año: 2012 vol. 32 p. 603 - 613
ISSN:
0272-4634
Resumen:
For the first time an association of adult and juvenile rebbachisaurid sauropods is described. The material comes from the Early Cretaceous locality of Agrio del Medio (Neuquén, Argentina). The three specimens apparently formed a single group, and their death seems to have been almost simultaneous. The two juvenile specimens are represented by axial and appendicular bones. These show a close relationship with Zapalasaurus bonapartei, which comes from a different sector of the same basin, but which is approximately the same in age. The discovery at Agrio del Medio suggests that rebbachisaurid sauropods displayed gregarious behaviour. The paleoenvironments in which rebbachisaurids are normally recorded implies a greater tolerance toward extremely arid environments than that shown by macronarian sauropods.