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Abelisaurid tail vertebrae morphology



From: Ben Creisler
bcreisler@gmail.com


A new online paper:



Ariel H. Méndez (2012)
The caudal vertebral series in Abelisauridae (Dinosauria: Theropoda).
Acta Palaeontologica Polonica (in press)
doi: http://dx.doi.org/10.4202/app.2012.0095
http://app.pan.pl/article/item/app20120095.html




The caudal vertebrae of abelisaurid theropods are compared in detail.
Notable trends in vertebral morphology are apparent and illustrated
for this group, particularly in the shape of the transverse process.
Several differences are also noted among the members of this clade.
Such differences in morphology may underlie attributes related to
balance and/or locomotor function. This analysis is consistent with
the hypothesis that South American abelisaurids evolved in isolation
from those that inhabited India and Madagascar.