Tsagan Hushu, tortoise layer [PMPE] (Cretaceous to of Mongolia)

Also known as Polish-Mongolian Palaeontological Expedition, Tsagan Ula, Tsagan Khushu

Where: Omnogov, Mongolia (43.4° N, 100.4° E: paleocoordinates 40.6° N, 89.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Nemegt Formation, Campanian to Campanian (83.6 - 66.0 Ma)

• "one complex of beds" near middle of section

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; fine-grained, silty sandstone

• "one complex of fine-grained beds of silty sands"

Size class: macrofossils

Collected by PMPE in 1963–1964

Collection methods: quarrying, mechanical,

Primary reference: Z. Kielan-Jaworowska and K. Kowalski. 1965. Polish-Mongolian Palaeontological Expeditions to the Gobi Desert in 1963 and 1964. Bulletin de l'Académie Polonaise des Sciences, Cl. II 13(3):175-179 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38705: authorized by Matthew Carrano, entered by Matthew Carrano on 29.04.2004, edited by Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines -
Amphichelydia indet.2 Lydekker 1889 turtle
6 incomplete shells (ZPAL specimens)
 Testudines - Trionychidae
Trionychidae indet.1 Gray 1825 softshell turtle
"tortoises"
Trionyx gobiensis1 Danilov et al. 2014 softshell turtle
An almost complete, well preserved carapace (discus) of a small specimen, 11 cm long, three separate fragments of pleuraIs, including one of a considerable larger individual
 Testudines - Lindholmemydidae
Mongolemys elegans n. gen. n. sp.2
Mongolemys elegans n. gen. n. sp.2 Khosatzky and Mlynarski 1971 turtle
Holotype (ZIN RN T/M-46.1, complete shell of a large specimen. 22 cm long) In addition to the holotype there are numerous specimens from Tsagan Khushu , Nemegt Basin and Bugin Tsav , Western Gobi, housed in the Zoological Institute in Leningrad, and 36 fragmentary shells or isolated plates and bones from Tsagan Khushu , housed in the Palaeozoological Institute in Warsaw