100 m south of Tsagan Khushu Quarry 2 (Eocene of Mongolia)

Also known as Tsagan Hushu

Where: Omnogov, Mongolia (43.5° N, 100.4° E: paleocoordinates 43.5° N, 92.4° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bumban Member (Naran Bulak Formation), Bumbanian (55.8 - 48.6 Ma)

• 1.5 m above the lower limit of the Bumban Member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; red claystone

• Red clays

Size class: macrofossils

Primary reference: D. Dashzeveg. 1990. The earliest rodents (Rodentia, Ctenodactyloidea) of Central Asia. Acta Zoologica Cracoviensia 33(2):11-35 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180676: authorized by Philip Mannion, entered by Philip Mannion on 27.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Tamquammyidae
Ulanomys mirificus n. gen. n. sp.
Ulanomys mirificus n. gen. n. sp. Dashzeveg 1990 rodent
PSS 20-1 - holotype; referred material: PSS 20-2
 Glires - Mimotonidae
Gomphos elkema Shevyreva 1975 placental