Hsanda Gol, section SHG-A/1-9 (Oligocene of Mongolia)

Also known as Valley of Lakes

Where: Övörkhangai, Mongolia (45.3° N, 101.8° E: paleocoordinates 46.7° N, 99.3° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• Biozone B

• 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, R. Barsbold, B. Bayarmaa, M. Erbajeva, U.B. Göhlich, and Y. Khand. 2017. Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia). Palaeobiodiversity and palaeoenvironments 97(1):111-218 [P. Coster/P. Coster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 201176: authorized by Pauline Coster, entered by Pauline Coster on 02.05.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Tsaganomyidae indet.
Reptilia
 Squamata - Anguidae
Melanosaurini indet.
Melanosaurini indet. Sullivan 1979 squamates
 Squamata - Agamidae
Tinosaurus sp.
Tinosaurus sp. Marsh 1872 squamates
Mammalia
 Rodentia - Ctenodactylidae
Karakoromys decessus
Karakoromys decessus Matthew and Granger 1923 gundi
 Rodentia - Bathyergidae
Cyclomylus lohensis, Cyclomylus intermedius, Coelodontomys asiaticus
Cyclomylus lohensis Matthew and Granger 1923 mole rat
Cyclomylus intermedius Wang 2001 mole rat
Coelodontomys asiaticus Wang 2001 mole rat
 Rodentia - Cricetidae
Cricetops dormitor, Selenomys mimicus, Eucricetodon asiaticus, Eucricetodon caducus
Cricetops dormitor Matthew and Granger 1923 mouse
Selenomys mimicus Matthew and Granger 1923 mouse
Eucricetodon asiaticus Matthew and Granger 1923 mouse
Eucricetodon caducus Shevyreva 1967 mouse
 Rodentia - Dipodidae
"Allosminthus minutus" = Heosminthus minutus, Heosminthus chimidae
"Allosminthus minutus" = Heosminthus minutus Daxner-Höck 2001 rodent
Heosminthus chimidae Daxner-Höck et al. 2014 rodent
 Lagomorpha - Leporidae
Desmatolagus gobiensis, Ordolagus cf. teilhardi
Desmatolagus gobiensis Matthew and Granger 1923 rabbit
Ordolagus cf. teilhardi Burke 1941 rabbit
 Theriamorpha - Changlelestidae
Zaraalestes minutus
Zaraalestes minutus Matthew and Granger 1924 placental