Red Mesa, Artsa Bogdo (AMNH Loc. 11494) (Cretaceous of Mongolia)

Also known as Oshih Basin, Psittacosaurus type

Where: Ovorkhangai, Mongolia (44.2° N, 102.7° E: paleocoordinates 45.0° N, 103.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Öösh Formation, Early/Lower Cretaceous (145.0 - 100.5 Ma)

• originally Ondai Sair Fm., now the "cannonball beds" of the Öösh Fm.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Wong in 1922; reposited in the AMNH

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: H. F. Osborn. 1923. Two Lower Cretaceous dinosaurs of Mongolia. American Museum Novitates 95:1-10 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48936: authorized by Matthew Carrano, entered by Matthew Carrano on 04.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia -
Ornithischia indet. ornithischian
 Neornithischia - Psittacosauridae
Psittacosaurus mongoliensis n. gen. n. sp. Osborn 1923 ornithischian