| Irisosaurus | |
|---|---|
| |
| Restoration | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| clade: | Dinosauria |
| Order: | Saurischia |
| Suborder: | Sauropodomorpha |
| Genus: | †Irisosaurus |
| Binomial name | |
| †Irisosaurus yimenensis Peyre de Fabrègues et al., 2020 | |
Irisosaurus (meaning "iridescent lizard" after the iridescent clouds of Yunnan Province, China), is an extinct genus of sauropodomorph dinosaur, [1] from the Fengjiahe Formation of China. The type species, I. yimenensis was formally described in 2020.[1] It was the sister taxon to Mussaurus.
Discovery and naming[]
Skeleton
The holotype, CVEB 21901, was found in the rocks of the Fengjiahe Formation in Yimen County, Yunnan, during the summer of 2018. In 2020, it was assigned to the new genus and species, I. yimenensis, named after the county it was found and "the famous iridescent clouds of Yunnan Province" [1].
Irisosaurus holotype shows a unique combination of traits that in themselves are not unique. There is a large and deep neurovascular foramen on the perinarial fossa. The premaxillary ramus of the maxilla is higher than it is long prior to the nasal process. The proximal half of metacarpal V is strongly asymmetrical. [1]
Gallery[]
References[]
- ↑ 1.0 1.1 1.2 1.3 (2020) "A new species of early-diverging Sauropodiformes from the Lower Jurassic Fengjiahe Formation of Yunnan Province, China". Scientific Reports 10 (1): Article number 10961. DOI:10.1038/s41598-020-67754-4.