Khuren Dukh I [HMNS-GIN] (Cretaceous to of Mongolia)

Also known as KD-I, KD-Hawaii

Where: Dornogov, Mongolia (45.8° N, 108.4° E: paleocoordinates 49.3° N, 100.1° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lower Member (Khuren Dukh Formation), Middle Albian to Middle Albian (109.0 - 99.6 Ma)

• formerly Shinekhudag = Shinehuduk Fm.

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; fine-grained, coarse, white, blue sandstone and brown, carbonaceous siltstone

• "alternation of bluish white fine to coarse sandstone and black lignite and lignitic mudstone (paper shale in some horizons"; C. barsboldi quarry in "a thick brown– black organic rich siltstone"

Size classes: macrofossils, mesofossils, microfossils

Collected by HMNS-GIN in 1993, 1995–1996, 2001

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

• Pollen samples also collected.

Primary reference: M. Watabe and D. B. Weishampel. 1994. Results of Hayashibara Museum of Natural Sciences–Institute of Geology, Academy of Sciences of Mongolia Joint Paleontological Expedition to the Gobi Desert in 1993. Journal of Vertebrate Paleontology 14(3, suppl.):51A [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55252: authorized by Matthew Carrano, entered by Matthew Carrano on 03.10.2005, edited by Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Osteichthyes -
Osteichthyes indet.4 Huxley 1880 bony fish
'one complete skeleton of a fish'; 930731 KD-I
Reptilia
 Testudines - Macrobaenidae
Hangaiemys sp.3 Sukhanov and Narmandakh 1974 turtle
930371 KD-I; 960720 KD-I TSGT, SZK; 960720 KD WTB; 960721 KD OTG
 Theropoda -
Theropoda indet.4 theropod
claw, upper jaw
 Ornithischia -
Choyrodon barsboldi n. gen. n. sp.1
Choyrodon barsboldi n. gen. n. sp.1 Gates et al. 2018 ornithopod
several skeletons, incl. 1 juvenile/'a whole and three partial skeletons'; 960721 KD ENK
 Choristodera -
Tchoiria sp.2 Efimov 1975 choristodere
a champsosaurid skeleton with skull and two other partial skeletons; 960721 KD ORKh, 960721 KD SZK, 960721 KD TSGT