Khermeen Tsav II, Middle Red Beds [PMPE] (Cretaceous of Mongolia)

Also known as Polish-Mongolian Palaeontological Expedition, Khermin Tsav

Where: Omnogov, Mongolia (43.3° N, 99.8° E: paleocoordinates 40.3° N, 89.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• also "Red Beds of Khermeen Tsav"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; poorly lithified, tabular, concretionary, red, silty, calcareous sandstone

• identical description to Djadokhta Fm. (same ref)
• vivid red to orange, poorly cemented sandstone, with sandy concretions of variable size, small, white calcareous concretions occur. Some silt and clay intercalations. Cross-stratification is rare, but horizontally layered and massive beds are common. Common trace fossils - sediment-filled tubes - within the Red Beds. "In the profile Khermeen Tsav II the thick-bedded sandstones are orange-coloured and numerous intercalations of light-coloured (white, yellow, pale-red, and bluish-green) thin-bedded siltstones and claystones are present." (10453)

Size class: macrofossils

Collected by PMPE in 1970-1971

Collection methods: quarrying, mechanical,

• five specimens found at this locality in addition to type specimen

Primary reference: Z. Kielan-Jaworowska. 1974. Multituberculate succession in the Late Cretaceous of the Gobi Desert (Mongolia). Palaeontologia Polonica 30:23-44 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28243: authorized by John Alroy, entered by Erin Leckey on 03.02.2003, edited by Jason Head, Matthew Carrano, Roger Benson and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spirobolida -
Gobiulus sabulosus3 Dzik 1975 millipede
 Salientia - Gobiatidae
"Eopelobates leptocolaptus n. sp." = Gobiates leptocolaptus1
"Eopelobates leptocolaptus n. sp." = Gobiates leptocolaptus1 Borsuk-Bialynicka 1978 frog
 Saurischia - Faveoloolithidae
Faveoloolithus ningxiaensis9 Zhao and Ding 1976 sauropod
 Avetheropoda - Dendroolithidae
Dendroolithidae indet.10 Zhao and Li 1988 coelurosaur
 Ornithischia - Ankylosauridae
Saichania chulsanensis8 Maryanska 1977 ornithischian
ZPAL MdG I/114
 Neornithischia - Protoceratopsidae
? Protoceratopsidae indet.10 Granger and Gregory 1923 ornithischian
ZPAL MgOv-III/1-8, 19; eggs
Protoceratops sp.4 Granger and Gregory 1923 ornithischian
 Neornithischia - Spheroolithidae
? Spheroolithidae indet.10 Zhao 1979 bird foot dinosaur
ZPAL MgOv-III/18, 17
 Squamata -
Gobiderma pulchra n. gen. n. sp.2
Gobiderma pulchra n. gen. n. sp.2 Borsuk-Bialynicka 1984 squamates
ZPAL MgR-III/64 (holotype), skull with mandible; ZPAL MgR-III/65, damaged skull roof with frag. right mandible and thick skull osteoderms; ZPAL MgR-III/66, damaged skull and mandibles
 Squamata - Varanidae
Cherminotus longifrons n. gen. n. sp.2
Cherminotus longifrons n. gen. n. sp.2 Borsuk-Bialynicka 1984 monitor lizard
ZPAL MgR-III/59 (holotype), damaged skull; ZPAL MgR-III/67, damaged skull
 Squamata - Polyglyphanodontidae
Adamisaurus magnidentatus11 Sulimski 1972 squamates
ZPAL MgR-III/1-5, 14, 23, 25-27 (partial-fragmentary skulls)
Erdenetesaurus robinsonae n. gen. n. sp.12 Sulimski 1975 squamates
ZPAL MgR-III/19, 22
 Squamata - Slavoiidae
Slavoia darevskii13 Sulimski 1984 lizard
 Tribosphenida -
Asioryctes nemegtensis5 Kielan-Jaworowska 1975 eutherian
 Tribosphenida - Zalambdalestidae
Barunlestes butleri5 Kielan-Jaworowska 1975 eutherian
ZPAL MgM-I/90 (partial right mandible), I/94 (partial right and left mandibles), I/104 (craniofacial portion of skull with mandibles, humerus and scapula), I/107 (partial skull)
 Theriiformes -
Deltatheridium pretrituberculare6 Gregory and Simpson 1926 mammal
type of "tardum" subspecies; possible incorrectly spelled "pretrituberculare" [check ref. 10462]
 Multituberculata - Sloanbaataridae
Nessovbaatar multicostatus n. gen. n. sp.7 Kielan-Jaworowska and Hurum 1997 multituberculate
ZPAL MgM-I/103
 Multituberculata - Djadochtatheriidae
"Djadochtatherium catopsaloides" = Catopsbaatar catopsaloides
"Djadochtatherium catopsaloides" = Catopsbaatar catopsaloides Kielan-Jaworowska 1974 multituberculate
skull with partial lower jaws
 Multituberculata -
Chulsanbaatar vulgaris Kielan-Jaworowska 1974 multituberculate
Nemegtbaatar gobiensis n. gen. n. sp. Kielan-Jaworowska 1974 multituberculate
ZPAL MgM-I/81 (holotype partial skeleton)