Palaeospinax
| Palaeospinax Temporal range: 250–60 Ma | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Selachimorpha |
| Order: | Synechodontiformes |
| Family: | Palaeospinacidae |
| Genus: | Palaeospinax Egerton, 1872 |
| Type species | |
| Paleospinax priscus | |
Palaeospinax is an extinct genus of shark which lived from the Early Triassic to the end of the Eocene epoch. Although several species have been described, the genus is considered nomen dubium because the type-specimen of the type species, Paleospinax priscus, lacks appropriate diagnostic characters to define the genus.[1]
References
- ↑ Klug, Stefanie; Kriwet, Jürgen (2008). "A new basal galeomorph shark (Synechodontiformes, Neoselachii) from the Early Jurassic of Europe". Naturwissenschaften. 95 (5): 443–448. doi:10.1007/s00114-007-0341-0.
- Maisey, J. G. (1977). "The fossil selachian fishes Palaeospinax Egerton, 1872 and Nemacanthus Agassiz, 1837". Zoological Journal of the Linnean Society. 60 (3): 259–273. doi:10.1111/j.1096-3642.1977.tb01029.x.
This article is issued from Wikipedia - version of the 5/22/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.