Cerro de Guerra (Cretaceous to of Argentina)

Where: Río Negro, Argentina (39.5° S, 67.3° W: paleocoordinates 42.2° S, 53.0° W)

When: Allen Formation, Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• Other fossils collected from the same horizon and locality include indeterminate fishes (isolated vertebrae and scales), fragmentary chelid turtle shells, and elasmosaurid plesiosaur remains (isolated vertebrae and the articular portion of a lower jaw), indicating a nearshore marine depositional environment.

•[The lack of a mention of fossil eggs suggests these remains are not from 'egg level 5' (collection:96070)]

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• Nearshore marine

Size class: macrofossils

Collection methods: quarrying, surface (in situ),

• MPCNPV, Vertebrate paleontology Collection, Museo Patagónico de Ciencias Naturales, General Roca, Río Negro, Argentina

Primary reference: F. E. Novas, M. Kundrat, F. L. Agnolin, M. D. Ezcurra, P. E. Ahlberg, M. P. Isasi, A. Arriagada and P. Chafrat. 2012. A new large pterosaur from the Late Cretaceous of Patagonia. Journal of Vertebrate Paleontology 32(6):1447-1452 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135703: authorized by Roger Benson, entered by Roger Benson on 04.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

"Pisces indet." = Osteichthyes
"Pisces indet." = Osteichthyes Huxley 1880 bony fish
indeterminate fishes (isolated vertebrae and scales)
 Testudines - Panchelidae
Chelidae indet. sideneck turtle
fragmentary chelid turtle shells
 Pterosauria - Azhdarchidae
Aerotitan sudamericanus n. gen. n. sp.
Aerotitan sudamericanus n. gen. n. sp. Novas et al. 2012 pterosaur
Holotype—MPCN-PV 0054, partial rostrum
 Sauropterygia - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
elasmosaurid plesiosaur remains (isolated vertebrae and the articular portion of a lower jaw)