Ikh Argalatyn Nuruu, IKH-A/1-2 (Oligocene of Mongolia)

Also known as Valley of Lakes

Where: Övörkhangai, Mongolia (45.3° N, 102.1° E: paleocoordinates 46.3° N, 98.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: B mammal zone, Hsanda Gol Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; red, silty mudstone

• The fines of the Hsanda Gol Fm. are interpreted as eolian dust and playa sediments, deposited on an arid plain (Höck et al., 1999).
• The Hsanda Gol Fm. mainly consists of "brick red" poorly sorted mudstones (Höck et al., 1999).

Size class: mesofossils

Collected by joint Austrian-Mongolian project; reposited in the NHMW

Collection methods: sieve

Primary reference: I. A. Vislobokova and G. Daxner-Höck. 2002. Oligocene - Early Miocene Ruminants from the Valley of Lakes (Central Mongolia). Annalen des Naturhistorischen Museums in Wien, Serie A 103:213-235 [P. Mannion/P. Mannion/O. Alfaro]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 182119: authorized by Philip Mannion, entered by Philip Mannion on 11.10.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Lagomorpha - Leporidae
Desmatolagus robustus1, Ordolagus cf. teilhardi1
Desmatolagus robustus1 Matthew and Granger 1923 rabbit
NHMW2013/0208/0001–0002
Ordolagus cf. teilhardi1 Burke 1941 rabbit
NHMW2011/0199/0001, NHMW2011/2200/0001–0002
 Rodentia - Aplodontidae
Promeniscomys cf. sinensis2, Ninamys kazimierzi2, Ninamys arboraptus2
Promeniscomys cf. sinensis2 Wang 1987 mountain beaver
Ninamys kazimierzi2 Vianey-Liaud et al. 2013 mountain beaver
Ninamys arboraptus2 Vianey-Liaud et al. 2013 mountain beaver
 Artiodactyla - Cervidae
Eumeryx sp.
Eumeryx sp. Matthew and Granger 1924 deer
NHMW 2001z0087/0001
1Erbajeva and Daxner-Höck 2014; 2Maridet et al. 2017