Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

A medium-sized ornithopod (Dinosauria: Ornithischia) from the Upper Cretaceous Bajo Barreal Formation of Lago Colhu Huapi, southern Chubut Province, Argentina

Ibiricu, LM and Martínez, RD and Lamanna, MC and Casal, GA and Luna, M and Harris, JD and Lacovara, KJ (2010) A medium-sized ornithopod (Dinosauria: Ornithischia) from the Upper Cretaceous Bajo Barreal Formation of Lago Colhu Huapi, southern Chubut Province, Argentina. Annals of Carnegie Museum, 79 (1). 39 - 50. ISSN 0097-4463

[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)

Abstract

An associated partial postcranial skeleton is described as the third definitive ornithopod dinosaur record from the Upper Cretaceous Bajo Barreal Formation of central Patagonia, Argentina. Specifically, the specimen was recovered from the uppermost Cretaceous (Campanian-?Maastrichtian) Upper Member of the Bajo Barreal exposed on an ephemeral island in the southeastern portion of Lago Colhu Huapi in southern Chubut Province. Identifiable elements of the skeleton include four incomplete dorsal vertebrae, three partial anterior caudal vertebrae, a middle caudal neural arch, an incomplete posterior caudal vertebra, a dorsal rib fragment, the right calcaneum, and portions of the left metatarsal III and right metatarsal IV. Comparisons with corresponding elements in other ornithischians indicate that the material pertains to a medium-sized, non-hadrosaurid ornithopod. In particular, the morphology of the calcaneum is characteristic of ornithopods of this "grade". The new discovery augments our understanding of the latest Cretaceous terrestrial vertebrate assemblage of central Patagonia and adds to the generally meager record of ornithischians in the Late Cretaceous of the Southern Hemisphere.


Share

Citation/Export:
Social Networking:
Share |

Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Ibiricu, LM
Martínez, RD
Lamanna, MC
Casal, GA
Luna, M
Harris, JD
Lacovara, KJ
Date: 1 August 2010
Date Type: Publication
Journal or Publication Title: Annals of Carnegie Museum
Volume: 79
Number: 1
Page Range: 39 - 50
DOI or Unique Handle: 10.2992/007.079.0103
Schools and Programs: Dietrich School of Arts and Sciences > Geology and Planetary Science
Refereed: Yes
ISSN: 0097-4463
Date Deposited: 22 Apr 2014 16:57
Last Modified: 02 Feb 2019 14:55
URI: http://d-scholarship.pitt.edu/id/eprint/21368

Metrics

Monthly Views for the past 3 years

Plum Analytics

Altmetric.com


Actions (login required)

View Item View Item