The Aitym Formation is a geological formation in Uzbekistan which possibly dates to the Santonian stage of the Late Cretaceous period.[ 1]
The formation has not been precisely dated. However, certain fossils suggest the formation was deposited during the Santonian stage of the Late Cretaceous period.[ 1]
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.[ 1]
Color key
Notes Uncertain or tentative taxa are in small text ; crossed out taxa are discredited.
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