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 
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| 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]
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| 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
edit- ^ Mem. Geol. Surv. Unit. Kingdom, Dec. 13 [5] explan. pl. 7, pp. page(s): 3
- ^ "†Palaeospinax Egerton 1872 (elasmobranch)" (html). Fossilworks. Retrieved 21 February 2019.
- ^ L. Agassiz. 1843. Recherches Sur Les Poissons Fossiles. Tome III (livr. 15-16). Imprimérie de Petitpierre, Neuchatel 157-390
- ^ Palaeospinax Egerton, 1872 in GBIF Secretariat (2017). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via https://www.gbif.org/species/4824942 on 2019-02-21.
- ^ Klug, Stefanie; Kriwet, Jürgen (2008). "A new basal galeomorph shark (Synechodontiformes, Neoselachii) from the Early Jurassic of Europe". Naturwissenschaften. 95 (5): 443–448. Bibcode:2008NW.....95..443K. doi:10.1007/s00114-007-0341-0. PMID 18196213. S2CID 8460659.
Further reading
edit- 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.
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