| Edestidae Temporal range:
Early Carboniferous to
Early Triassic
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|---|---|
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| Artist's reconstruction of Edestus heinrichi | |
Scientific classification
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | † Eugeneodontida |
| Clade: | † Edestoidea |
| Family: | †
Edestidae Jaekel, 1899 |
| Genera | |
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The Edestidae are a poorly known, extinct family of shark-like eugeneodontid holocephalid cartilaginous fish.
Similar to the related family Helicoprionidae, members of this family possessed a unique "tooth-whorl" on the symphysis of the lower jaw and pectoral fins supported by long radials. In addition to having a tooth-whorl on the lower jaw, at least one species of the genus Edestus had a second tooth-whorl in the upper jaw. The palatoquadrate was either fused to the skull or reduced. Edestids, along with the rest of the Eugeneodontida, are placed within the subclass Holocephali. [1] The family disappeared in the Early Triassic. [2]
References
- ^ Tapanila, L.; Pruitt, J.; Pradel, A.; Wilga, C.; Ramsay, J.; Schlader, R.; Didier, D. (2013). "Jaws for a spiral-tooth whorl: CT images reveal novel adaptation and phylogeny in fossil Helicoprion". Biology Letters. 9 (2). doi: 10.1098/rsbl.2013.0057. PMC 3639784. PMID 23445952. S2CID 6131252.
- ^ Scheyer, Torsten M.; Romano, Carlo; Jenks, Jim; Bucher, Hugo (19 March 2014). "Early Triassic Marine Biotic Recovery: The Predators' Perspective". PLOS ONE. 9 (3): e88987. Bibcode: 2014PLoSO...988987S. doi: 10.1371/journal.pone.0088987. PMC 3960099. PMID 24647136.
External links
- Palaeos Vertebrates 70.100 Chondrichthyes: Eugnathostomata Paleos.com at paleos.com
- JSTOR: Journal of PaleontologyVol. 70, No. 1 (Jan., 1996), pp. 162-165
- Mikkk's phylogeny Archive
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