Taatsiin Gol, right side, section TGR-A, layers 13+14 (Oligocene of Mongolia)

Also known as TGR-A/13+14, Valley of Lakes

Where: Övörkhangai, Mongolia (45.4° N, 101.3° E: paleocoordinates 46.9° N, 98.8° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• Biozone A sensu Höck et al. (1999, Mitt. Österr. Geol. Ges. 90, 83-125). Biozone A is capped by a Basalt layer that has been dated by means of 40Ar/39Ar method (see Höck et al., 1999).

• bed-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 in 1995-1997, 2001, 2004, 2006; reposited in the NHMW

Collection methods: sieve

Primary reference: G. Daxner-Höck, D. Badamgarav, and O. Maridet. 2014. Dipodidae (Rodentia, Mammalia) from the Oligocene and Early Miocene of Mongolia. Annalen des Naturhistorischen Museums in Wien, Serie A 116:131-214 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187294: authorized by Philip Mannion, entered by Philip Mannion on 20.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Dipodidae
Heosminthus chimidae Daxner-Höck et al. 2014 rodent
NHMW 2013/0131/0000