PBDB Collection

Shiluut Ula [HMNS-GIN] (Cretaceous to of Mongolia)

Also known as Shiljust-Ula

Where: Omnogov, Mongolia (42.3° N, 105.7° E: paleocoordinates 40.4° N, 95.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Baruungoyot Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• questionable formation assignment. Three parts, upper white, middle red, and lower white. At least middle and lower produce fossils.

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; paleosol/pedogenic, red mudstone and lithified, white sandstone

• "Total thickness of the geologic section of this locality is about 71.5 meters, consisting of three parts: upper white part, middle red part, and lower white part. The lithological complex of these three parts does not differ from each other, all showing a fluvial depositional environment. The three parts were in interfingering relationship with one another.

•The paleocurrent shown by trough cross-stratification in the hard layers of sandstone in the section is from east to west, and from north east to southwest...The two dinosaur egg nests from the paleosol were found in a muddy fine sandstone layer close to each other."

Size class: macrofossils

Collected by HMNS-GIN in 1997

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

Primary reference: M. Watabe and S. Suzuki. 2000. Report on the Japan–Mongolia Joint Paleontological Expedition to the Gobi desert, 1997. Hayashibara Museum of Natural Sciences Research Bulletin 1:69-82 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 100265: authorized by Matthew Carrano, entered by Matthew Carrano on 04.12.2010, edited by Roger Benson and Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Bivalvia
-	Bivalvia indet. Bivalvia indet. Linnaeus 1758 clam many bivalves; 970801 ShU WTB
Reptilia
Testudines - Trionychidae	Trionyx shiluutulensis n. sp.¹ Trionyx shiluutulensis n. sp.¹ Danilov et al. 2014 softshell turtle 970802 ShU SZK, 970803 SU PJ-1 WTB
Testudines - Lindholmemydidae	Lindholmemydidae indet.² Lindholmemydidae indet.² Chkhikvadze 1970 turtle
Dinosauria -	Dinosauria indet. Dinosauria indet. dinosaur eggs, nests; 970803 SU PJ-3 WTB, PJ-4 WTB
Ornithischia - Hadrosauridae	Hadrosauridae indet. Hadrosauridae indet. Cope 1869 hadrosaurid the scapula of a hadrosaur
Theropoda - Dromaeosauridae	Dromaeosauridae indet. Dromaeosauridae indet. Colbert and Russell 1969 maniraptoran disarticulated dromaeosaurid bones in bone bed; 970803 SU PJ-5-9 TSGT

¹Danilov et al. 2014; ²Suzuki and Narmandakh 2004