AMNH Loc. 9336, Erenhot (Cretaceous to of China)

Also known as Erlian, SCDP site 4, site M, Central Asiatic Expedition

Where: Nei Mongol, China (43.8° N, 112.4° E: paleocoordinates 43.1° N, 101.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• high in formation

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

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; red, sandy claystone

• "red, sandy clay"

Size class: macrofossils

Collected by CAE in 1923; reposited in the AMNH

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

Primary reference: R. C. Andrews. 1932. The New Conquest of Central Asia: A Narrative of the Explorations of the Central Asiatic Expeditions ni Mongolia and China, 1921-1930. Natural History of Central Asia 1:1-678 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48934: authorized by Matthew Carrano, entered by Matthew Carrano on 04.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Spheroolithidae
"Paraspheroolithes irenensis" = Spheroolithus irenensis
"Paraspheroolithes irenensis" = Spheroolithus irenensis Chao and Chiang 1974 ornithopod
eggs; field #707