Overosaurus

Overosaurus; Temporal range: Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Overosaurus life restoration
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Macronaria
Clade:	†Titanosauria
Clade:	†Lithostrotia
Genus:	†Overosaurus; Coria et al., 2013
Species:	†O. paradasorum
Binomial name
	†Overosaurus paradasorum; Coria et al., 2013

Overosaurus (meaning "Overo lizard", after the Cerro Overo locality

saltasaurids and other aeolosaurines, estimated as approximately 10 m (33 ft).^[1] It was a ground-dwelling herbivore

.

Discovery and naming

The only known specimen of Overosaurus paradasorum was recovered at the Cerro Overo locality in Patagonia, Argentina. The specimen was collected in 2002 by researchers from the Museo Carmen Funes, the Museo Argentino Urquiza, and the Natural History Museum of Los Angeles County, in terrestrial sediments deposited during the Campanian stage of the Late Cretaceous period, approximately 84 to 78 million years ago. This specimen is housed in the collection of the Museo Argentino Urquiza in Neuquén, Argentina. The specimen was found by Carlos Parada and family, who provided logistic support to museum staff^[2] as well as assistance during fieldwork.^[3] The Cerro Overo locality was originally reported as within the Anacleto Formation of the Neuquén Group,^[1] but is now attributed to the Bajo de la Carpa Formation.^[4]

Description

Overosaurus was described and named by Rodolfo A. Coria, Leonardo S. Filippi, Luis M. Chiappe, Rodolfo García and Andrea B. Arcucci in

caudal vertebra, the ribs of the last three cervical vertebrae, six right dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8,9), five left dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8), the proximal portions of dorsal ribs of both sides of dorsal vertebrae 9 and 10, a complete right ilium and a fragmented left ilium. Specifically the vertebral series includes the last four cervical vertebrae, ten dorsal vertebrae, six sacral vertebrae, and twenty caudal vertebrae. Its sacrum consists of six fused sacral vertebrae.^[1]