Earth:Khilok Formation
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Short description: Geologic formation in Russia
| Khilok Formation Stratigraphic range: Aptian ~120–113 Ma | |
|---|---|
| Type | Geological formation |
| Thickness | 900–1,400 m (3,000–4,600 ft) |
| Lithology | |
| Primary | Trachybasalt |
| Other | Conglomerate, sandstone |
| Location | |
| Coordinates | [ ⚑ ] : 50°42′N 107°54′E / 50.7°N 107.9°E |
| Paleocoordinates | [ ⚑ ] 52°42′N 105°36′E / 52.7°N 105.6°E |
| Region | Buryatia |
| Country |  Russia |
  Khilok Formation (Russia) | |
The Khilok Formation is an Early Cretaceous geologic formation in Buryatia, Russia . While the lower portion of the formation consists of sandstone and conglomerates, the upper portion of the formation largely consists of trachybasalt, these deposits have been dated to the Aptian.[1] A thin 20 cm bed is known from the formation containing the remains of numerous indeterminate vertebrates, including dinosaur and pterosaurs and an indeterminate species of Kirgizemys.[2]
Fossil content
The following fossils were reported from the formation:[3]
- Reptiles
- Kirgizemys sp.
- Prodeinodon sp.
- Choristodera indet.
- Dromaeosauridae indet.
- Hypsilophodontidae indet.
- Ornithopoda indet.
- Ornithocheiridae indet.
- Scincomorpha indet.
- Testudines indet.
- Titanosauriformes indet.
- Amphibians
- Fish
- Hybodus sp.
- Amiiformes indet.
- Palaeonisciformes indet.
- Teleostei indet.
See also
- List of pterosaur-bearing stratigraphic units
- Murtoi Formation
References
- ↑ Zavialova, Natalia; Markevich, Valentina; Bugdaeva, Eugenia; Polevova, Svetlana (September 2011). "The ultrastructure of fossil dispersed monosulcate pollen from the Early Cretaceous of Transbaikalia, Russia" (in en). Grana 50 (3): 182–201. doi:10.1080/00173134.2011.611530. ISSN 0017-3134.
- ↑ "Krasnyi Yar, Khilok River (Cretaceous of Russian Federation)". https://paleobiodb.org/classic/basicCollectionSearch?collection_no=58199&is_real_user=.
- ↑ Khilok Formation
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