Mt. Uskuk, Ondai Sair (AMNH 25955): Hauterivian - Barremian, Mongolia
collected by W. Granger 1922
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Ephemeroptera
- Hexagenitidae
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Actinopteri
- Leptolepidiformes
- Leptolepididae
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Lycoptera middendorffi
Muller 1848
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Reptilia
- Dinosauria
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| 1 specimen | ||||||||||
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Reptilia
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| Napoli et al. 2019 | 1 specimen | |||||||||
| IGM 100/1132 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mongolia |
| Coordinates: | 44.7° North, 101.9° East (view map) |
| Paleocoordinates: | 40.9° North, 109.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Hauterivian - Barremian | 10 m.y. bin: | Cretaceous 2 |
| Key time interval: | Hauterivian - Barremian | ||
| Age range of interval: | 132.6 - 121.4 m.y. ago |
Stratigraphy
| Formation: | Andaikhudag | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "paper shales" level | |||||
Lithology and environment
| Primary lithology: | planar lamination "shale" |
| Includes fossils? | Y |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils,microfossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | some |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float),surface (in situ),mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH,PIN | ||
| Collectors: | W. Granger | Collection dates: | 1922 |
Metadata
| Also known as: | MONG-09, Andai-Sayr Anda-Khuduk well | ||
| Database number: | 48940 | ||
| Authorizer: | M. Carrano, G. Lloyd | Enterer: | M. Carrano, G. Lloyd |
| Modifier: | M. Carrano | Research group: | paleoentomology,vertebrate |
| Created: | 2005-04-04 11:42:20 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-04-04 11:42:20 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 13060. | ETE | R. C. Andrews. 1932. The New Conquest of Central Asia: A Narrative of the Explorations of the Central Asiatic Expeditions ni Mongolia and China, 1921-1930. Natural History of Central Asia 1:1-678 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 34870 | A. V. Alexeev. 2008. New Jewel Beetles (Coleoptera: Buprestidae) and Similar Beetles from the Cretaceous and Early Paleogene of Asia. Paleontological Journal 42:53-59 [M. Clapham/J. Karr] | |
| 69232 | E. H. Colbert. 2000. Asiatic dinosaur rush. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia 211-234 [M. Carrano/M. Carrano] | |
| 33967 | ETE | N. N. Kalandadze and S. M. Kurzanov. 1974. Nizhnemelove mestonakhozhdeniya nazemnykh pozvonochnykh Mongolii [Lower Cretaceous terrestrial vertebrate localities of Mongolia]. 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 1:288-295 [M. Carrano/M. Carrano/M. Carrano] |
| 77017 | J. G. Napoli, T. Hunt, G. M. Erickson and M. A. Norell. 2019. Psittacosaurus amitabha, a new species of ceratopsian dinosaur from the Ondai Sayr Locality, Central Mongolia. American Museum Novitates 3932:1-36 [G. Lloyd/G. Lloyd] |