Mike Taylor wrote:
But we now know that caudals from a single individual titanosaur's tail can exhibit a huge variety of morphologies: here I am thinking of the specimen DGM 497-R, briefly described in:
TROTTA, M. N. F.; CAMPOS, D. A. & KELLNER, A. W. A. 2002. Unusual caudal vertebral central of a titanosaurid (Dinosauria, Sauropoda) from the continental Upper Cretaceous of Brazil. Boletim do Museu Nacional, Geologia, 1-11.
(and, IIRC, subsequently named, but I don't remember what as.)