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New Torvosaurus (Jurassic theropod) specimen identified



From: Ben Creisler
bcreisler@gmail.com


A new online paper:

Michael Hanson & Peter J. Makovick (2013)
A new specimen of Torvosaurus tanneri originally collected by Elmer Riggs.
Historical Biology (advance online publication)
DOI:10.1080/08912963.2013.853056
http://www.tandfonline.com/doi/full/10.1080/08912963.2013.853056#.UrHXuvRDv8s


A new specimen of the theropod dinosaur Torvosaurus tanneri discovered
by Elmer Riggs in 1899 in the Freezeout Hills of Wyoming and held in
the Field Museum of Natural History is described. This specimen
demonstrates that unreported material of this species has been present
in museum collections 80 years prior to the species' scientific
description and it likely represents the first non-dental material of
this species to be collected. This material comprises parts of the
left foot and right hand, including phalanges which were previously
unknown for Torvosaurus, and substantiates the possibility that other
Torvosaurus material may be undiscovered in museum collections. Its
occurrence in a multitaxon quarry is consistent with other skeletal
finds of Torvosaurus, all or most of which occur in association with
other, more common Morrison dinosaur taxa.