Mt. Uskuk, Tsagan Nor (AMNH 10514) (Cretaceous of Mongolia)

Also known as Usskuk

Where: Ovorkhangai, Mongolia (44.7° N, 101.9° E: paleocoordinates 45.3° N, 102.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

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

• originally Ondai Sair Fm.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected 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 48939: authorized by Matthew Carrano, entered by Matthew Carrano on 04.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Saurischia indet. saurischian
 Neornithischia - Psittacosauridae
Psittacosaurus sp., "Protiguanodon mongoliense n. gen. n. sp." = Psittacosaurus mongoliensis
Psittacosaurus sp. Osborn 1923 ornithischian
"Protiguanodon mongoliense n. gen. n. sp." = Psittacosaurus mongoliensis Osborn 1923 ornithischian
AMNH 6253