Donguz Formation
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| Donguz Formation | |
|---|---|
| Stratigraphic range: Anisian ~ | |
 Eryosuchus, an index fossil of the Donguz | |
| Type | Stratigraphic Formation |
| Underlies | Bukobay Svita[1] |
| Overlies | Petropavlovskaya Svita (Yarenskian Gorizont) |
| Lithology | |
| Primary | Sandstone |
| Other | Claystone, conglomerate |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | Bashkortostan Orenburg Oblast |
| Country | Russia |
| Type section | |
| Named for | Donguz River |
Donguz Formation (Russia) | |
The Donguz Formation, Donguz Svita, or Donguz Rocks (Russian: Донгузские скалы) is a Middle Triassic geological formation that crops out on the right bank of Donguz River in Orenburg Oblast, Russia, across the settlement of Pervomaisky. The formation is equivalent to a biostratigraphic unit, the Donguz Gorizont. It is famous for its rich collection of the fossils of Middle Triassic tetrapods.[2][1][3]
It is a nature monument (особо охраняемых природных территорий (ООПТ)).[4]
Fossil content
[edit | edit source]The following fossils have been found in the Donguz Formation:[1]
- Temnospondyls
- Eryosuchus antiquus, Ochev
- E. garjainovi, Ochev
- E. tverdochlebovi, Ochev
- Bukobaja? sp.
- Plagiorophus danilovi
- Plagioscutum ochevi, Shishkin
- Plagiosternum paraboliceps (Konzhukova)
- Thecodonts
- Procolophonid
- Kapes serotinus, Novikov
- Proterosuchids
- Sarmatosuchus ochevi, Sennikov
- Erythrosuchids
- Uralosaurus magnus, (Ochev)
- Rauisuchidae
- Dongusia colorata, Huene
- Vjushkovisaurus berdjanensis, Ochev
- Euparkeriidae
- Dorosuchus neoetus, Sennikov
- Dicynodonts
- Kannemeyeria spp.
- Shansiodon (Rhinodicynodon) gracile (Kalandadze)
- Therocephalians
- Dongusaurus schepetovi, Vyushkov
- Nothogomphodon danilovi, Tatarinov
- Diademodontids
- Scalenodon boreus, Tatarinov
- Traversodontids
- Antecosuchus ochevi, Tatarinov
- Therapsids
- Fish
- Archosaurs
- Dongusuchus efremovi, Sennikov
See also
[edit | edit source]References
[edit | edit source]- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ область&objregion=Оренбургский район
- ^ Uraloved.ru