Contralmirante Cordero (Cretaceous to of Argentina)

Where: Rio Negro, Argentina (38.8° S, 68.1° W: paleocoordinates 41.5° S, 53.6° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Middle Member of Allen Formation

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; sandstone and shale

• marginal marine environment

Size class: macrofossils

Primary reference: J. P. O'Gorman, Z. Gasparini, and L. Salgado. 2013. Postcranial morphology of Aristonectes (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of Patagonia and Antarctica. Antarctic Science 25(1):71-82 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140325: authorized by Philip Mannion, entered by Philip Mannion on 07.03.2013, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

 Sauropterygia - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
MUC Pv 131 (juvenile skeleton comprising four cervical vertebrae, two dorsal vertebrae, a fragment of scapula?, tarsal or carpal element and four phalanges)