Also known as Guchin Us Somon; Khoobur; Khobur; Khoboor; Hobur; Höövör; Khoboor, Guchinus, Khovur
Where: Övörkhangai Aymag, Mongolia (42.5° N, 102.4° E: paleocoordinates 43.0° N, 100.7° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Dzunbain Formation, Late/Upper Aptian to Late/Upper Aptian (122.5 - 109.0 Ma)
• "Lower Cretaceous (possibly Aptian)" and from the Khukhtekskaya Svita = Dzunbayn = Dzunbain Formation according to Dashzeveg 1975, but "? Aptian or Albian" according to Wible et al. 2001. Shown in column as "Khobur" beds (Shuvalov, 1974).
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•Alifanov 2019: assumed to belong to the Hühteeg Horizon without formal assignment to any formation identified in Mongolia and are dated either to the Aptian age including the Albian age (Shuvalov, 2000) or to the late Aptian age and the entire Albian age (Lucas, 2006). According to our preliminary data, the Hühteeg Horizon corresponds to the time interval that includes the late Aptian and early Albian ages.
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine; poorly lithified, gray, yellow sandstone and red, blue claystone
•from K & K 1974: "an alternation, sometimes rhythmic, of gray sandstones, yellowish sands, blue and reddish clays. The bones were found in interlayers of sandstones, sands, and silts."
Size classes: macrofossils, mesofossils
Collected by P. Kozlov, P. Khosbayar, SMPE, SMGE, MAE in 1926; 1964; 1969–1972, 1991, 1997, 1999; reposited in the PIN
Collection methods: bulk, sieve,
• original collections consisted of "About seven tons of sediments... have been washed and screened" and the collection "is housed in the Palaeontological Institute of the USSR Academy of Sciences" under the charge of B. A. Trofimov
Primary reference: V. F. Shuvalov. 1974. O geologicheskom stroenii i vozraste mestonakhozhdenii Khobur i Khuren-Dukh [On the geology and age of the Khobur and Khuren-Dukh localities]. In N. N. Kramarenko, B. Luvsandansan, Yu. I. Voronin, R. Barsbold, A. K. Rozhdestve (eds.), Mesozoic and Cenozoic Faunas and Biostratigraphy of Mongolia; The Joint Soviet-Mongolian Paleontological Expedition, Transactions 1:296-304 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 77191: authorized by John Alroy, entered by John Alroy on 28.12.2007, edited by Roger Benson, Matthew Carrano, Philip Mannion and Grace Varnham
Creative Commons license: CC BY (attribution)
Taxonomic list
•Kalandadze & Kurzanov 1974 list "five new forms" of Lacertilia; these are certainly among those named later and not included in the list.
unclassified | |
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Branchiopoda | |
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Gnathostomata | |
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Amphibia | |
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Mammalia | |
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Eobaatar magnus n. gen. n. sp.13 Kielan-Jaworowska et al. 1987 multituberculate PIN 3101/57 (holotype left P4) and other specimens
Eobaatar minor n. sp.13 Kielan-Jaworowska et al. 1987 multituberculate PIN 3101/70 (holotype right mandible) and GI PST 10-23 (anterior part of a left P4)
Monobaatar mimicus n. gen. n. sp.13 Kielan-Jaworowska et al. 1987 multituberculate PIN 3101/65 (holotype partial left maxilla), 3101/74 (left maxilla), GI PST 10-26 (?P4), 3101/61 (left M2))
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Arginbaatar dimitrievae n. gen. n. sp.13
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Kielantherium gobiensis n. gen. n. sp.7, Prozalambdalestes simpsoni n. gen. n. sp.11, Hovurlestes noyon n. gen. n. sp.14, Prokennalestes trofimovi n. gen. n. sp.12, Prokennalestes kozlovi n. gen. n. sp.11, Prokennalestes minor n. sp.12, "Arguimus khosbajari n. gen. n. sp." = Arguimus khosbajari8, "Arguitherium cromptoni n. gen. n. sp." = Arguimus khosbajari9
Kielantherium gobiensis n. gen. n. sp.7 Dashzeveg 1975 mammal Including holotype, a mandible reported by Dashvezeg & Kielan-Jaworowska (1984) (GI PST 10-16), and specimens reported by Lopatin & Averianov (2007): PIN 3101/110 (upper molar), PIN 3101/32 (dentary fragment)
Hovurlestes noyon n. gen. n. sp.14 Lopatin and Averianov 2018 eutherian PIN, no. 3101/111 - holotype
Prokennalestes trofimovi n. gen. n. sp.12 Kielan-Jaworowska and Dashzeveg 1989 eutherian 19 specimens, plus 2 specimen reported by Sigogneau-Russell et al (1992)
Prokennalestes minor n. sp.12 Kielan-Jaworowska and Dashzeveg 1989 eutherian 19 specimens, plus 2 specimen reported by Sigogneau-Russell et al (1992)
"Arguimus khosbajari n. gen. n. sp." = Arguimus khosbajari8 Dashzeveg 1979 mammal GISPS 10-15 (holotype dentary fragment)
"Arguitherium cromptoni n. gen. n. sp." = Arguimus khosbajari9 Dashzeveg 1979 mammal PS 10-31 (holotype partial dentary) reported by Dashvezeg & Kielan-Jaworowska (1998)
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"Gobiodon infinitus n. gen. n. sp." = Gobiotheriodon infinitus11
"Gobiodon infinitus n. gen. n. sp." = Gobiotheriodon infinitus11 Trofimov 1980 mammal "gen. et sp. nov."
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"Guchinodon hoburensis n. gen. n. sp." = Gobiconodon hoburensis10 Trofimov 1978 mammal plus PSS 10-37a (partial right maxilla), 10-37b (partial left maxilla), 10-37c (partial right dentary), 10-21 (crown of right m5)
Gobiconodon borissiaki n. sp.11 Trofimov 1978 mammal "gen. et sp. nov.", PSS-MAE-104, right petrosal
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Reptilia | |
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"Iguania" indet.2 squamates "numerous unpaired and rugose iguanian-like frontals with a clear incision on their parietal border for the parietal opening"
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"Xantusidae indet." = Xantusiidae1
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Naimanosaurus dinosauroaequalis n. gen. n. sp.3 Alifanov 2019 squamates PIN, no. 3334/516, right dentary with teeth
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Hoburogekko suchanovi n. gen. n. sp.6
Hoburogekko suchanovi n. gen. n. sp.6 Alifanov 1989 squamates in Alifanov (1989); PIN 3334-500 - holotype (most of the muzzle); referred specimen: PIN 3334-503 (partial jaw)
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Gurvelus khangaicus n. gen. n. sp.3
Gurvelus khangaicus n. gen. n. sp.3 Alifanov 2019 squamates Holotype: PIN, no. 3334/518 (partial skull)
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"Hodzhaculia sp." = Hodzhakulia1
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Dorsetisaurus sp.1 Hoffstetter 1967 squamates "numerous isolated maxillae and dentaries" (Alifanov 2000)
Paradorsetisaurus postumus n. gen. n. sp.4 Alifanov 2019 squamates Holotype: PIN 3334/517, right maxilla
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Xenostius futilus n. gen. n. sp.4 Alifanov 2019 squamates Holotype: PIN 3334/522, left dentary PIN 3334/521; left dentary with teeth.
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Khereidia aptiana n. gen. n. sp.3
Khereidia aptiana n. gen. n. sp.3 Alifanov 2019 squamates Holotype: PIN, no. 3334/523, right dentary
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Palaeoxanta conicodentata n. gen. n. sp.3
Palaeoxanta conicodentata n. gen. n. sp.3 Alifanov 2019 squamates Holotype: PIN, no. 3334/520, left dental bone; PIN, no. 3334/555, right dental bone with teeth
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Psittacosaurus mongoliensis Osborn 1923 ceratopsian | |
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