Jaikosuchus
Extinct genus of reptiles
From Wikipedia, the free encyclopedia
Jaikosuchus is an extinct genus of proterosuchid archosauriform. It contains a single species, J. magnus. Fossils have been found from European Russia that date back to the upper Olenekian stage of the Early Triassic.[2]
| Jaikosuchus Temporal range: Early Triassic (Olenekian) | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Family: | †Proterosuchidae |
| Subfamily: | †Chasmatosuchinae |
| Genus: | †Jaikosuchus Sennikov, 1990 |
| Species: | †J. magnus |
| Binomial name | |
| †Jaikosuchus magnus (Ochev, 1979) | |
| Synonyms | |
|
Chasmatosuchus magnus Ochev, 1979 | |
Discovery
The genus was originally assigned as a new species of the proterosuchid Chasmatosuchus in 1979, but was later put in its own genus in 1990. It has often been described as an erythrosuchid, a rauisuchian or a basal suchian closely related to rauisuchians rather than the more traditional view of it being a more primitive archosaur.[3][4] In 2016, it was synonymized again with Chasmatosuchus by Ezcurra et al., but was revived as a distinct genus by Ezcurra et al. again in a 2023 overview of proterosuchid taxonomy, who found its vertebral morphology to be distinct from that of Chasmatosuchus. Both were placed in the new subfamily Chasmatosuchinae.[5][6]
