AMNH quarry 135, Iren Dabasu (Cretaceous to of China)

Where: Nei Mongol, China (43.8° N, 111.8° E: paleocoordinates 42.9° N, 100.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Iren Dabasu Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• The Iren Dabasu Formation is Middle–Late Campanian according to Xing et al. 2012

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Olsen in 1923; reposited in the AMNH

Primary reference: C. W. Gilmore. 1933. On the dinosaurian fauna of the Iren Dabasu Formation. Bulletin of the American Museum of Natural History 68(2-3):23-78 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48943: authorized by Matthew Carrano, entered by Matthew Carrano on 04.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia -
Ankylosauria indet. ornithischian