3.2 km south of Ulan Malgait Mtn. [Ulan Malgait Fm.] [SMPE] (Jurassic of Mongolia)

Also known as Shar-Teg, Shar Teeg, Shar Teg; PIN Loc. 4171

Where: Govi-Altay, Mongolia (44.1° N, 95.8° E: paleocoordinates 46.0° N, 98.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ulan Malgait Formation, Tithonian (152.1 - 145.0 Ma)

• = Tsagaantsav horizon

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; sandy siltstone

• "The monsoonal character of the climate resulted in alternating wet and dry seasons. Numerous crocodilian remains are entombed in the shore and bottom sediments of the ancient lake at Shar Teeg, particularly in the restricted 'rehgia' of deeper water basins that remained following lake retreat during dry spells"
• sandy siltstone layers in middle of section

Size classes: macrofossils, mesofossils, microfossils

Collected by SMPE in 1989; reposited in the PIN

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

Primary reference: Y. M. Gubin and S. M. Sinitza. 1996. Shar Teg: a unique Mesozoic locality of Asia. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:311-318 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 179184: authorized by Matthew Carrano, entered by Matthew Carrano on 03.06.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Saurischia - Mamenchisauridae
aff. Mamenchisaurus sp.
aff. Mamenchisaurus sp. Young 1954 mamenchisaurid
 Loricata - Shartegosuchidae
Nominosuchus matutinus n. gen. n. sp., Shartegosuchus asperopalatum n. gen. n. sp.
Nominosuchus matutinus n. gen. n. sp. Efimov 1996 crocodilian
PIN 4174/4 - holotype (partial skull)
Shartegosuchus asperopalatum n. gen. n. sp. Efimov 1988 crocodilian
PIN 4171/2 - holotype (partial skull and jaws of a juvenile animal)
 Testudinata -
Testudinata indet.
Testudinata indet. Oppel 1811 turtle
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod