Also known as Chamrin-Us, Soviet-Mongolian Paleontological Expedition

Where: Dornogov, Mongolia (43.9° N, 111.4° E: paleocoordinates 47.1° N, 107.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Barunbayaskaya Formation, Aptian to Aptian (125.5 - 99.6 Ma)

• "Barunbayaskaya Svita"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by SMPE in 1979

Primary reference: R. Barsbold, H. Osmólska, and S. M. Kurzanov. 1987. On a new troodontid (Dinosauria, Theropoda) from the Early Cretaceous of Mongolia. Acta Palaeontologica Polonica 32(1-2):121-132 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 52006: authorized by Matt Carrano, entered by Matt Carrano on 11.07.2005