| Alexeyisaurus Temporal range: Late Triassic, | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | † Sauropterygia |
| Genus: | † Alexeyisaurus Sennikov & Arkhangelsky, 2010 |
| Species: | †A. karnoushenkoi |
| Binomial name | |
| †Alexeyisaurus karnoushenkoi Sennikov & Arkhangelsky, 2010 | |
Alexeyisaurus is an extinct genus of possible plesiosaur known from the upper Triassic (lower-middle Norian age) of Wilczek Formation, Wilczek Land, of Franz Josef Land, Russia. [1] It was first named by A. G. Sennikov and M. S. Arkhangelsky in 2010 and the type species is Alexeyisaurus karnoushenkoi. [1] While considered an elasmosaur in the initial publication, it has been described as a "partial, poorly preserved, and undiagnostic sauropterygian skeleton" in subsequent publications. [2]