Khermeen Tsav II, Middle Red Beds [PMPE] (Cretaceous to 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 to 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 and R. Barsbold. 1972. Narrative of the Polish-Mongolian Palaeontological Expeditions 1967-1971. Palaeontologia Polonica 27:5-136 [M. Carrano/M. Carrano/M. Carrano]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

Amphibia
 Salientia - Gobiatidae
"Eopelobates leptocolaptus n. sp." = Gobiates leptocolaptus1
"Eopelobates leptocolaptus n. sp." = Gobiates leptocolaptus1 Borsuk-Bialynicka 1978 frog
ZPAL MgAb-III/l
Reptilia
 Ornithischia - Ankylosauridae
Saichania chulsanensis8 Maryanska 1977 ankylosaurid
ZPAL MdG I/114
 Ornithischia - Protoceratopsidae
? Protoceratopsidae indet.10 Granger and Gregory 1923 ceratopsian
ZPAL MgOv-III/1-8, 19; eggs
Protoceratops sp. Granger and Gregory 1923 ceratopsian
 Ornithischia - Spheroolithidae
? Spheroolithidae indet.10 Zhao 1979 ornithopod
ZPAL MgOv-III/18, 17
 Theropoda - Dendroolithidae
Dendroolithidae indet.10 Zhao and Li 1988 coelurosaur
eggs
 Saurischia - Faveoloolithidae
Faveoloolithus ningxiaensis9 Zhao and Ding 1976 sauropod
ZPAL MgOv-III/18b
 Squamata - Polyglyphanodontidae
Erdenetesaurus robinsonae n. gen. n. sp.12 Sulimski 1975 squamates
ZPAL MgR-III/19, 22
Adamisaurus magnidentatus11 Sulimski 1972 squamates
ZPAL MgR-III/1-5, 14, 23, 25-27 (partial-fragmentary skulls)
 Squamata - Slavoiidae
Slavoia darevskii13 Sulimski 1984 squamates
 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
Mammalia
 Multituberculata -
Nemegtbaatar gobiensis n. gen. n. sp.4
Nemegtbaatar gobiensis n. gen. n. sp.4 Kielan-Jaworowska 1974 multituberculate
ZPAL MgM-I/81 (holotype partial skeleton)
 Multituberculata - Sloanbaataridae
Nessovbaatar multicostatus n. gen. n. sp.7 Kielan-Jaworowska and Hurum 1997 multituberculate
ZPAL MgM-I/103
 Multituberculata - Djadochtatheriidae
"Djadochtatherium catopsaloides" = Catopsbaatar catopsaloides4
"Djadochtatherium catopsaloides" = Catopsbaatar catopsaloides4 Kielan-Jaworowska 1974 multituberculate
skull with partial lower jaws
 Multituberculata -
Chulsanbaatar vulgaris4 Kielan-Jaworowska 1974 multituberculate
 Theriamorpha - 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)
 Theriamorpha - Asioryctidae
Asioryctes nemegtensis5 Kielan-Jaworowska 1975 eutherian
 Deltatheroida - Deltatheridiidae
Deltatheridium pretrituberculare6 Gregory and Simpson 1926 metatherian
type of "tardum" subspecies; possible incorrectly spelled "pretrituberculare" [check ref. 10462]
Myriapoda
 Spirobolida -
Gobiulus sabulosus3 Dzik 1975 millipede