Yagaan Khovil [HMNS-GIN]: Maastrichtian, Mongolia
collected by HMNS-GIN 1998, 2000, 2007
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
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Bivalvia indet.
Linnaeus 1758
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Reptilia
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Testudinata indet.
(Oppel 1811)
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1 specimen | |||||||||
000810 YK-N SZK Turtle | ||||||||||
? Mongolochelys sp.
Khosatzky 1997
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Watabe and Tsogtbaatar 2004 | |||||||||
Reptilia
- Testudines
- Lindholmemydidae
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Lindholmemydidae indet.
Chkhikvadze 1970
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Suzuki and Narmandakh 2004 | 9 specimens | ||||||||
shell fragments | ||||||||||
cf. Mongolemys sp.
Khosatzky and Mlynarski 1971
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Watabe and Tsogtbaatar 2004 | |||||||||
"Mongolemys-like turtle" | ||||||||||
Reptilia
- Testudines
- Trionychidae
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Trionyx sp.
Geoffroy Saint-Hilaire 1809
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Watabe and Tsogtbaatar 2004 | 6 specimens | ||||||||
= Trionychidae indet.
Gray 1825
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Suzuki and Narmandakh 2004 | |||||||||
shell fragments | ||||||||||
Reptilia
- Theropoda
- Elongatoolithidae
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Elongatoolithidae indet.
Zhao 1975
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Watabe and Tsogtbaatar 2004 | |||||||||
dinosaur eggshell fragments (elongatoolithid and spheroolithid) | ||||||||||
Reptilia
- Theropoda
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Avimimus sp.
Kurzanov 1981
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Watabe and Tsogtbaatar 2004 | 11 individuals | ||||||||
partial skeletons and isolated bones (at least 2 individuals), 000810 YK Avimimus UJ1, UJ2; 070624 YK SZK, 070628 YK ORKH | ||||||||||
= Avimimus portentosus
Kurzanov 1981
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Czepiński 2020 | |||||||||
Reptilia
- Theropoda
- Tyrannosauridae
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Tyrannosauridae indet.
Osborn 1906
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Watabe and Tsogtbaatar 2004 | |||||||||
a caudal vertebra of a large carnosaur, 2 metatarsals, a femur, a vertebra, 1 rib and a supraorbital were collected. The bite marks were recognized on the bone surface of the metatarsal and rib | ||||||||||
Reptilia
- Theropoda
- Ornithomimidae
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Ornithomimidae indet.
Marsh 1890
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Watabe and Tsogtbaatar 2004 | 1 individual | ||||||||
partial skeleton; 000811 YK-C BON Ornithomimid | ||||||||||
Reptilia
- Theropoda
- Dendroolithidae
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Dendroolithidae indet.
Zhao and Li 1988
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Watabe and Tsogtbaatar 2004 | |||||||||
Reptilia
- Theropoda
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Carnosauria indet.
(Huene 1920)
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Saneyoshi et al. 2010 | |||||||||
Reptilia
- Spheroolithidae
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Spheroolithidae indet.
Zhao 1979
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Watabe and Tsogtbaatar 2004 | |||||||||
dinosaur eggshell fragments (elongatoolithid and spheroolithid) | ||||||||||
Reptilia
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? Sauropoda indet.
(Marsh 1878)
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1 individual | |||||||||
large sacral vertebrae | ||||||||||
Sauropoda indet.
(Marsh 1878)
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Watabe and Tsogtbaatar 2004 | 1 specimen | ||||||||
rib | ||||||||||
see common names |
Geography
Country: | Mongolia | State/province: | Omnogov |
Coordinates: | 44.1° North, 102.7° East (view map) | ||
Paleocoordinates: | 42.0° North, 91.4° East | ||
Basis of coordinate: | stated in text | ||
Altitude: | 1286 | ||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Late Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Maastrichtian | ||
Age range of interval: | 72.1 - 66 m.y. ago |
Stratigraphy
Formation: | Nemegt | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: questionable formation assignment. Lower part of section |
Lithology and environment
Primary lithology: | mudstone |
Secondary lithology: | fine,red sandstone |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: "alternation of pale red fine sandstone and red mudstone" | |
Environment: | fluvial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | good |
Fragmentation: | frequent |
Collection methods and comments
Collection excludes: | some macrofossils | ||
Collection methods: | selective quarrying,surface (float),surface (in situ),mechanical,field collection | ||
Reason for describing collection: | general faunal/floral analysis | ||
Collectors: | HMNS-GIN | Collection dates: | 1998, 2000, 2007 |
Taxonomic list comments:JMJPE visited this locality in 1998, and discovered fragments of turtle skeletons, large sacral vertebrae, bivalves and eggshells. Many dinosaur footprints (those of a hadrosaur) were also found. |
Metadata
Database number: | 108344 | ||
Authorizer: | M. Carrano, R. Benson | Enterer: | M. Carrano, R. Benson |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2011-04-28 06:51:18 | Last modified: | 2022-07-29 14:33:50 |
Access level: | the public | Released: | 2011-04-28 06:51:18 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
42293. | S. Suzuki and M. Watabe. 2000. Report on the Japan–Mongolia Joint Paleontological Expedition to the Gobi desert, 1998. Hayashibara Museum of Natural Sciences Research Bulletin 1:83-98 [R. Benson/R. Benson/M. Carrano] |
Secondary references:
82280 | Ł Czepiński. 2020. New protoceratopsid specimens improve the age correlation of the Upper Cretaceous Gobi Desert strata. Acta Palaeontologica Polonica 65(3):481-497 [M. Carrano/M. Carrano/M. Carrano] | |
50209 | I. G. Danilov, R. Hirayama, V. B. Sukhanov, S. Suzuki, M. Watabe and N. S. Vitek. 2014. Cretaceous soft-shelled turtles (Trionychidae) of Mongolia: new diversity, records, and a revision. Journal of Systematic Palaeontology 12(7):799-832 [P. Mannion/J. Tennant/P. Mannion] | |
82304 | Y. Matsumoto, R. Hashimoto, T. Sonoda, Y. Fujiyama, B. Mifune, Y. Kawahara, and M. Saneyoshi. 2010. Report of the preparation works for Mongolian specimens in Hayashibara Museum of Natural Sciences: 1999–2008. Hayashibara Museum of Natural Sciences Research Bulletin 3:167-185 [M. Carrano/M. Carrano/M. Carrano] | |
55067 | M. Saneyoshi, M. Watabe, T. Tsubamoto, K. Tsogtbaatar, T. Chinzorig and S. Suzuki. 2010. Report of the HMNS-MPC Joint Paleontological Expedition in 2007. Hayashibara Museum of Natural Sciences Research Bulletin 3:19-28 [M. Carrano/M. Carrano] | |
41670 | S. Suzuki and P. Narmandakh. 2004. Change of the Cretaceous turtle faunas in Mongolia. Hayashibara Museum of Natural Sciences Research Bulletin 2:7-14 [R. Benson/R. Benson] | |
35934 | ETE | K. Tsogtbaatar. 2004. Fossil specimens prepared in Mongolian Paleontological Center 1993-2001. Hayashibara Museum of Natural Sciences Research Bulletin 2:123-128 [M. Carrano/M. Carrano] |
42154 | M. Watabe and S. Suzuki. 2000. Cretaceous fossil localities and a list of fossils collected by the Hayashibara Museum of Natural Sciences and Mongolian Paleontological Center Joint Paleontological Expedition (JMJPE) from 1993 through 1998. Hayashibara Museum of Natural Sciences Research Bulletin 1:99-108 [R. Benson/R. Benson] | |
42294 | M. Watabe and K. Tsogtbaatar. 2004. Report on the Japan–Mongolia Joint Paleontological Expedition to the Gobi desert, 2000. Hayashibara Museum of Natural Sciences Research Bulletin 2:45-67 [R. Benson/R. Benson/M. Carrano] |