A Gigantic, Exceptionally CompleteTitanosaurian Sauropod Dinosaur from

Southern Patagonia, Argentina

Kenneth J. Lacovara1, Matthew C. Lamanna2, Lucio M. Ibiricu3, Jason C. Poole4, Elena R. Schroeter1, Paul V. Ullmann1, Kristyn K. Voegele1, Zachary M. Boles1, Aja M. Carter1, Emma K. Fowler1, Victoria M. Egerton5, Alison E. Moyer6, Christopher L. Coughenour7, Jason P. Schein8, Jerald D. Harris9, Ruben D. Martınez10 & Fernando E. Novas11

Outline

Introduction Methods Result Discussion

What is “Titanosaurus”? What is “Sauropoda”?

Introduction Titanosaurus

a huge titanosaurid sauropod with dragon-like lumpy spikes on its back.9-12 metres long and about 13 tons in weight.

Sauropoda

Sauropoda

IntroductionDreadnoughtus schrani

.The most complete giant titanosaur yet discovered

Methods

Phylogenetic analysis Phylogenetic character states of

Dreadnoughtus schrani Body dimensions Calculating completeness vs. other

giant titanosaurs

Result

Holotype Paratype Diagnosis Description

Discussion

Body length of 26 m Not osteologically mature at death Approximately 45,3% of bones

expected in a complete titanosaurian skeleton and 70,5% of the postcranial elements

Reference

Kenneth J. Lacovara, M. C. (2014). A Gigantic, Exceptionally Complete Titanosaurian Sauropod Dinosaur from Southern Patagonia, Argentina. PALAEONTOLOGY SYSTEMATICS , 1-9.