Geological formation in Uzbekistan
The Aitym Formation is a geological formation in Uzbekistan which possibly dates to the Santonian stage of the Late Cretaceous period.
The formation has not been precisely dated. However, certain fossils suggest the formation was deposited during the Santonian stage of the Late Cretaceous period.
Fossil content
A diverse fauna has been unearthed from the Aitym Formation including oysters , ammonites and many marine vertebrates , including an abundant assemblage of chondrichthyans (cartilaginous fish), a rarer assemblage of osteichthyans (bony fish), and rather infrequent finds of plesiosaurs , and sea turtles . Terrestrial vertebrate remains are extremely rare in the formation. A few bones of salamanders , lizards , crocodiles , possibly terrestrial turtle remains, dinosaurs (including birds ), and mammals have been found in the formation.
Color key
Notes Uncertain or tentative taxa are in small text ; crossed out taxa are discredited.
References
^ Averianov, A (2003). "Mammals from the Upper Cretaceous Aitym Formation, Kyzylkum Desert, Uzbekistan" . Cretaceous Research . 24 (2): 171–191. Bibcode :2003CrRes..24..171A . doi :10.1016/S0195-6671(03)00037-5 .
Skutschas, Pavel P.; Saburov, Pavel G.; Boitsova, Elizaveta A.; Kolchanov, Veniamin V. (2019). "Ontogenetic changes in long-bone histology of the cryptobranchid Eoscapherpeton asiaticum (Amphibia: Caudata) from the Late Cretaceous of Uzbekistan" . Comptes Rendus Palevol . 18 (3): 306–316. Bibcode :2019CRPal..18..306S . doi :10.1016/j.crpv.2019.02.002 .
Categories :
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
**DISCLAIMER** We are not affiliated with Wikipedia, and Cloudflare.
The information presented on this site is for general informational purposes only and does not constitute medical advice.
You should always have a personal consultation with a healthcare professional before making changes to your diet, medication, or exercise routine.
AI helps with the correspondence in our chat.
We participate in an affiliate program. If you buy something through a link, we may earn a commission 💕
↑