Gashato sandy lens (Paleocene of Mongolia)

Also known as Flaming Cliffs; Khashat; Khashaat

Where: Omngov, Mongolia (44.0° N, 104.0° E: paleocoordinates 44.2° N, 95.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: 1 Member (Khashat Formation), Late/Upper Paleocene (58.7 - 55.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

• Sandy lens

Size classes: macrofossils, mesofossils

Collected in 1999

• Discovered and completely excavated and screenwashed by two of the authors (G.E. and J.-L.H.) and the late D. Dashzeveg

Primary reference: P. Missiaen, G. Escarguel, J.-L. Hartenberger and T. Smith. 2012. A large new collection of Palaeostylops from the Paleocene of the Flaming Cliffs area (Ulan-Nur Basin, Gobi Desert, Mongolia), and an evaluation of the phylogenetic affinities of Arctostylopidae (Mammalia, Gliriformes). Geobios 45:311-322 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133008: authorized by Philip Mannion, entered by Philip Mannion on 31.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Cimolesta - Sarcodontidae
Sarcodontidae indet. Lopatin and Kondrashov 2004 eutherian
one dentary fragment
 Glires -
Mixodontia indet. Sych 1971 placental
"few rare teeth of a large mixodont"
 Glires - Eurymylidae
Eurymylus laticeps Matthew and Granger 1925 placental
 Tribosphenida - Arctostylopidae
Palaeostylops iturus Matthew and Granger 1925 eutherian
111 of the 255 upper and lower jaw fragments, representing 376/730 teeth and a MNI of 32
Palaeostylops macrodon Matthew et al. 1929 eutherian
40/255 jaw fragments, representing 154/730 teeth and a MNI of 14
 Multituberculata - Lambdopsalidae
Prionessus lucifer Matthew and Granger 1925 multituberculate
Lambdopsalis bulla Chow and Qi 1978 multituberculate
Distal part of humerus