Where: Chubut, Argentina (45.5° S, 68.9° W: paleocoordinates 52.1° S, 46.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bajo Barreal Formation (Chubut Group), Cenomanian to Cenomanian (99.6 - 89.3 Ma)

• "pre-Maastrichtian Senonian"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by R. Lydekker; reposited in the MLP

Collection methods: quarrying,

Primary reference: R. Lydekker. 1893. Contributions to a knowledge of the fossil vertebrates of Argentina. 1. — The dinosaurs of Patagonia. Anales del Museo de La Plata. Paleontología Argentina 2:1-16 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52031: authorized by Matt Carrano, entered by Matt Carrano on 12.07.2005, edited by Philip Mannion