Earth:Kakanaut Formation
From HandWiki
| Kakanaut Formation Stratigraphic range: Maastrichtian ~70–66 Ma | |
|---|---|
| Type | Geological formation |
| Underlies | Danian marine deposits |
| Overlies | Maastrichtian marine deposits |
| Thickness | 1,000 m (3,300 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Volcaniclastic |
| Location | |
| Coordinates | [ ⚑ ] : 62°54′N 177°06′E / 62.9°N 177.1°E |
| Paleocoordinates | [ ⚑ ] 75°42′N 179°00′E / 75.7°N 179.0°E |
| Region | Chukotka Autonomous Okrug |
| Country | Russia |
| Type section | |
| Named for | Kakanaut River |
  Kakanaut Formation (Russia) | |
The Kakanaut Formation is a geological formation in Siberia, whose strata date back to the Late Cretaceous (Maastrichtian). Dinosaur remains are among the fossils that have been recovered from the formation.[1][2] The flora of the formation is relictual, containing some of the youngest remains of the extinct plant orders Bennettitales and Czekanowskiales.[3][4]
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaurs
Ornithischians
Ankylosaurs
| Ankylosaurs of the Kakanaut Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Ankylosauria Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | Teeth | An indeterminate ankylosaur | |
Marginocephalians
| Marginocephalians of the Kakanaut Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Neoceratopsia Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | An indeterminate neoceratopsian | ||
Ornithopods
| Ornithopods of the Kakanaut Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Hadrosauridae Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | A hadrosaurid hadrosaur | ||
| Ornithopoda Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | An indeterminate ornithopod | ||
Saurischian
Theropods
| Theropods of the Kakanaut Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Image |
| Dromaeosauridae Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | A dromaeosaurid theropod | ||
| Troodon | T. cf. formosus | Chukotka Autonomous Okrug, Russia | Maastrichtian | A troodontin troodontine | ||
| Tyrannosauridae Indet. | Indeterminate | Chukotka Autonomous Okrug, Russia | Maastrichtian | A tyrannosaurid tyrannosauroid | ||
See also
- List of dinosaur-bearing rock formations
- List of fossiliferous stratigraphic units in Russia
References
- ↑ Weishampel et al., 2004, pp.593-600
- ↑ Godefroit, Pascal; Golovneva, Lina; Shchepetov, Sergei; Garcia, Géraldine; Alekseev, Pavel (1 April 2009). "The last polar dinosaurs: high diversity of latest Cretaceous arctic dinosaurs in Russia". Naturwissenschaften 96 (4): 495–501. doi:10.1007/s00114-008-0499-0.
- ↑ Gnilovskaya, Anastasia A.; Golovneva, Lina B. (February 2018). "The Late Cretaceous Pterophyllum (Bennettitales) in the North-East of Russia" (in en). Cretaceous Research 82: 56–63. doi:10.1016/j.cretres.2017.09.013. Bibcode: 2018CrRes..82...56G. https://linkinghub.elsevier.com/retrieve/pii/S0195667117300630.
- ↑ Zolina, Anastasia; Golovneva, Lina; Nosova, Natalya; Grabovskiy, Alexander (2020-12-01). "A new species of Phoenicopsis (Leptostrobales) from the Maastrichtian–Danian of Chukotka, Russia" (in en). Geobios 63: 67–75. doi:10.1016/j.geobios.2020.09.002. ISSN 0016-6995. Bibcode: 2020Geobi..63...67Z. https://www.sciencedirect.com/science/article/abs/pii/S0016699520300887.
Bibliography
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, https://books.google.com/books?id=vtZFDb_iw40C, retrieved 2019-02-21
 |  |
