Ritchieichthys
| Ritchieichthys Temporal range:
| |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Pteraspidomorpha |
| Subclass: | †Arandaspida |
| Genus: | †Ritchieichthys |
| Species: | †R. nibili
|
| Binomial name | |
| †Ritchieichthys nibili Sansom et. al., 2013
| |
Ritchieichthys is an extinct genus of arandaspid fish that lived during the Late Ordovician (Katian stage) in the Nibili Formation of the Canning Basin in Western Australia. The only species in this genus is Ritchieichthys nibili making it a monotypic genus. It has cellular dentine which forms the bulk of the dermal armor ornament.[1]
Discovery
It was discovered in Western Australia in the Nibili Formation of the Canning Basin. The discovery of Ritchieichthys nibili represents the first documented record of a fish from the Ordovician period of the Canning Basin.[1]
References
- ^ a b Sansom, Ivan J.; Haines, Peter W.; Andreev, Plamen; Nicoll, Robert S. (25 June 2013). "A new pteraspidomorph from the Nibil Formation (Katian, Late Ordovician) of the Canning Basin, Western Australia". Journal of Vertebrate Paleontology. 33 (4): 764–769. doi:10.1080/02724634.2013.751920. ISSN 0272-4634. Retrieved 25 June 2025 – via Taylor and Francis Online.