Palaeospinax is an extinct genus of synechodontiform cartilaginous fish. Although several species have been described, the genus is considered nomen dubium because the type-specimen of the type species, Palaeospinax priscus, from the Late Triassic-Early Jurassic of Europe lacks appropriate diagnostic characters to define the genus.[5]
Palaeospinax Temporal range: | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Order: | †Synechodontiformes |
Family: | †Palaeospinacidae |
Genus: | †Palaeospinax Egerton, 1872[1] |
Type species | |
†Paleospinax priscus Agassiz 1843[3] | |
Species[2] | |
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Synonyms[4] | |
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Other species originally described as Synechodus were transferred to the genus Palidiplospinax.
References
Further reading
- 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.