Edestidae

Edestidae
Temporal range: 360–200Ma

Early Carboniferous to Early Jurassic

Edestus protopirata
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Superorder: Holocephali
Order: Eugeneodontida
Family: Edestidae
Jaekel, 1899
Genera
  • Edestus
  • Helicampodus
  • Listracanthus
  • Lestrodus
  • Metaxyacanthus
  • Parahelicampodus
  • Physonemus
  • Prospiraxis
  • Syntomodus

Edestidae is a poorly known, extinct family of shark-like eugeneodontid holocephalid cartilaginous fish. Members of this family possessed a unique "tooth-whorl" on the symphysis of the lower jaw as well as pectoral fins supported by long radials. The palatoquadrate was either fused to the skull or reduced. Edestids, along with the rest of Eugeneodontida, are placed within Holocephali.[1]

External links

References

  1. 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. 10.1098/rsbl.2013.0057