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Re: Dreadnoughtus, new massive titanosaur (Sauropoda) from Argentina (free pdf)
One even-bigger-than-T-rex theropod, coming up!
On Thu, Sep 4, 2014 11:24 AM EDT Ben Creisler wrote:
>A new paper in open access:
>Kenneth J. Lacovara, Matthew C. Lamanna, Lucio M. Ibiricu, Jason C.
>Poole, Elena R. Schroeter, Paul V. Ullmann, Kristyn K. Voegele,
>Zachary M. Boles, Aja M. Carter, Emma K. Fowler, Victoria M. Egerton,
>Alison E. Moyer, Christopher L. Coughenour, Jason P. Schein, Jerald
>D. Harris, Rubén D. Martínez & Fernando E. Novas (2014)
>A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur
>from Southern Patagonia, Argentina.
>Scientific Reports 4, Article number: 6196
>Titanosaurian sauropod dinosaurs were the most diverse and abundant
>large-bodied herbivores in the southern continents during the final 30
>million years of the Mesozoic Era. Several titanosaur species are
>regarded as the most massive land-living animals yet discovered;
>nevertheless, nearly all of these giant titanosaurs are known only
>from very incomplete fossils, hindering a detailed understanding of
>their anatomy. Here we describe a new and gigantic titanosaur,
>Dreadnoughtus schrani, from Upper Cretaceous sediments in southern
>Patagonia, Argentina. Represented by approximately 70% of the
>postcranial skeleton, plus craniodental remains, Dreadnoughtus is the
>most complete giant titanosaur yet discovered, and provides new
>insight into the morphology and evolutionary history of these colossal
>animals. Furthermore, despite its estimated mass of about 59.3 metric
>tons, the bone histology of the Dreadnoughtus type specimen reveals
>that this individual was still growing at the time of death.