Ulaan Khushu [HMNS-GIN] (Cretaceous of Mongolia)

Also known as Ulan Hushu, Ulan Khushu

Where: Omnogov, Mongolia (43.5° N, 100.5° E: paleocoordinates 41.1° N, 89.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nemegt Formation, Maastrichtian (72.1 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and paleosol/pedogenic mudstone

• "Lithology of the beds is alternation of sandstone and mudstone layers with fluvial origin. Total thickness of the beds is about 25 m. Paleosol are developed in those beds. Paleocurrent direction on trough cross-stratification of hard sandstone layers is W to NW (299.1 degree, standard deviation = 6.45, N = 8)."

Size class: macrofossils

Collected by HMNS-GIN in 1993, 2006

Collection methods: surface (float), surface (in situ),

• HMNS-Hayashibara Museum of Natural Sciences

Primary reference: Y. Ariunchimeg. 1997. Results of studies of dinosaur eggs. Abstract of Report Meeting, Mongolia-Japan Joint Paleontological Expedition 13 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 127682: authorized by Roger Benson, entered by Roger Benson on 22.05.2012, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• JMJPE visited the locality in 1993, and collected several forms of dinosaur eggshells. Several bone fragments were also found.
Show authors, comments, and common names
Reptilia
 Dinosauria -
Dinosauria indet.
Dinosauria indet. Owen 1842 dinosaur
several forms of dinosaur eggshells
 Ornithischia - Hadrosauridae
Saurolophus sp.2
Saurolophus sp.2 Brown 1912 hadrosaurine
 Theropoda -
Theropoda indet.3
Theropoda indet.3 Marsh 1881 theropod
small theropod
 Theropoda - Tyrannosauridae
Tarbosaurus sp.2
Tarbosaurus sp.2 Maleev 1955 tyrannosaurid
 Testudinata -
Testudinata indet.2
Testudinata indet.2 Oppel 1811 turtle
 Testudines - Trionychidae
Trionychidae indet.1
Trionychidae indet.1 Gray 1825 softshell turtle
fragmentary remains
1Suzuki and Narmandakh 2004; 2Watabe et al. 2010; 3Watabe et al. 2010