ammonites
Shabarakh Usu (AMNH Loc. 12049) (=Bayn Dzak) (Cretaceous of Mongolia)

Also known as Flaming Cliffs, Central Asiatic Expedition, Bayn Dzak, Bayan Zag

Where: Omnogov, Mongolia (44.2° N, 103.7° E: paleocoordinates 41.8° N, 92.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Bayn Dzak Member (Djadokhta Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: eolian; red sandstone

Size class: macrofossils

Collected by CAE in 1923; reposited in the AMNH

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

• Collection represents entire 1923 collection from this site.

Primary reference: H. F. Osborn. 1924. The discovery of an unknown continent. Natural History 24(2):133-149 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48927: authorized by Matt Carrano, entered by Matt Carrano on 04.04.2005, edited by Roger Benson and Philip Mannion