Tsagaan Khutel (Eocene of Mongolia)

Also known as Tsagan Khutel; Tsagan-Khutel; Valley of Lakes; 2 km east of Bogdo

Where: Mongolia (45.2° N, 100.7° E: paleocoordinates 46.5° N, 95.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Kholboldchi Formation, Middle Eocene (47.8 - 37.7 Ma)

• Kholboldzhi Svita

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; medium-grained, coarse, gray, green sandstone

• Coarse and medium-grained sands that are often poorly sorted. The sands are often greenish-grey in color, and may contain intercalations of gravels, silts, and muds

Size classes: macrofossils, mesofossils

Collected in 1963-onwards; 2004–2006

Primary reference: B. P. Kraatz, D. Badamgarav, and F. Bibi. 2009. Gomphos ellae, a new mimotonid from the middle Eocene of Mongolia and its implications for the origin of Lagomorpha. Journal of Vertebrate Paleontology 29(2):576-583 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174724: authorized by Philip Mannion, entered by Philip Mannion on 25.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cimolesta - Coryphodontidae
Eudinoceras kholbolchiensis pantodont
Based on Osborn and Granger, 1931
 Cimolesta - Pantolambdodontidae
Archaeolambda prima pantodont
Based on Dashzeveg, 1980
 Tribosphenida - Pantolestoidae
Bogdia orientalis n. gen. n. sp.2
Bogdia orientalis n. gen. n. sp.2 Dashzeveg and Russell 1985 placental
PSS 13-5 - holotype; referred material: PSS 13-6
 Perissodactyla - Lophialetidae
Schlosseria sp. Matthew and Granger 1926 odd-toed ungulate
Based on Russell and Zhai, 1987
? Lophialetes sp. Matthew and Granger 1925 odd-toed ungulate
Based on Russell and Zhai, 1987
 Perissodactyla - Hyracodontidae
Rhodopagus sp. Radinsky 1965 odd-toed ungulate
Based on Reshetov, 1975
 Perissodactyla - Deperetellidae
Irdinolophus tuiensis n. sp.1 Dashzeveg and Hooker 1997 odd-toed ungulate
PSS 13-15 - type
 Glires - Mimotonidae
Gomphos ellae n. sp. Kraatz et al. 2009 placental
MPC 30/1 - type