Also known as Lago Pellegrini

Where: Río Negro, Argentina (38.7° S, 68.1° W: paleocoordinates 41.5° S, 53.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Middle Member of the Allen Formation

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; massive claystone and siltstone

Size class: macrofossils

• MLP 71-II-13-1, six cervical vertebrae, three dorsal vertebrae, three sacral vertebrae, nine caudal vertebrae, left humerus, femur and an ilium, an element ofthe carpus or tarsus, a rib and a phalanx. MCS PV4, 15 cervical vertebrae, three pectorals vertebrae, 15 dorsals, three caudals, one right scapula, proximal part ofright coracoid, two pubes, two ischia, distal end of a femur with both epipodial elements articulated, phalanges and gastroliths. MUCPv 92, two cervical vertebrae, three dorsals vertebrae, one sacral vertebra, eight caudals vertebrae, fragments of pectoral? girdle, ribs, phalanges, femur, two epipodial elements.

Reposited in the MLP

Collection methods: quarrying, surface (in situ),

• MCS, Museo de Cinco Saltos, Río Negro Province, Argentina

•MLP, Museo de La Plata, Buenos Aires Province, Argentina

•MUC, Museo de la Universidad del Comahue, Neuquén Province, Argentina

Primary reference: J. P. O'Gorman. 2016. A small body sized non-aristonectine elasmosaurid (Sauropterygia, Plesiosauria) from the Late Cretaceous of Patagonia with comments on the relationships of the patagonian and antarctic elasmosaurids. Ameghiniana 53(3):245-268 [P. Mannion/P. Mannion/F. Aspromonte]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194129: authorized by Philip Mannion, entered by Philip Mannion on 14.06.2018, edited by Franco Aspromonte

Creative Commons license: CC BY (attribution)