Edestidae Temporal range: Early Carboniferous to Early Triassic | |
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Artist's reconstruction of Edestus heinrichi | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Order: | † Eugeneodontiformes |
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]