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Udan-Sayr (PIN Loc. 3907) [SMPE] (Cretaceous of Mongolia)

Also known as Uuden Sayr, Uuden Sajr, Uuden Sair, Soviet-Mongolian Paleontological Expedition, Udan Sayr

Where: Omnogov, Mongolia (42.1° N, 102.2° E: paleocoordinates 39.1° N, 91.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Djadokhta Formation, Campanian (84.9 - 70.6 Ma)

• Udanoceratops from bed 2

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; yellow sandstone and lenticular, concretionary, gray, calcareous sandstone

• fossils from "yellow sands" and calcareous concretion in "a lens of dense, dark gray sandstones, strongly calcareous in places"

Size classes: macrofossils, mesofossils

Preservation: concretion

Collected by SMPE in 1973, 1980-1985; reposited in the PIN

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

Primary reference: S. M. Kurzanov. 1981. O neobuchnykh teropodakh iz verkhnego mela MNR [An unusual theropod from the Upper Cretaceous of Mongolia]. Fossil Reptiles of Mongolia. Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya, Trudy [The Joint Soviet-Mongolian Paleontological Expedition, Transactions] 24:39-50 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 65344: authorized by Matthew Carrano, entered by Matthew Carrano on 21.09.2006, edited by Philip Mannion

Creative Commons license: CC BY (attribution)