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Dreadnoughtus, new massive titanosaur (Sauropoda) from Argentina (free pdf)



Ben Creisler
bcreisler@gmail.com

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
doi:10.1038/srep06196
http://www.nature.com/srep/2014/140904/srep06196/full/srep06196.html



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.

News stories:

http://drexel.edu/now/archive/2014/September/Dreadnoughtus-Dinosaur/

http://news.nationalgeographic.com/news/2014/09/140904-giant-sauropod-dinosaur-dreadnoughtus-argentina/

http://phys.org/news/2014-09-unveil-dreadnoughtus-gigantic-exceptionally-sauropod.html

http://www.nbcnews.com/science/science-news/dreadnoughtus-new-giant-joins-biggest-dinosaur-parade-n195306