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Extinct genus of fishes From Wikipedia, the free encyclopedia
Anguillavus is an extinct genus of basal marine eel that lived during the upper Cenomanian of Lebanon.[1] It is the only known member of the family Anguillavidae. Its primitive nature compared to extant eels is indicated by it still retaining its pelvic fins, which have been lost in modern eels.[2]
| Anguillavus Temporal range: | |
|---|---|
| |
| Specimens of A. mazeni at the MIM Museum | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Anguilliformes |
| Family: | †Anguillavidae Hay, 1903 |
| Genus: | †Anguillavus Hay, 1903 |
| Type species | |
| Anguillavus quadripinnis Hay, 1903 | |
| Species | |
| |
It has two species:[3]
The species A. bathshebae, also described by Hay (1903), was synonymized with A. quadripinnis in 2003.[4]
In 1920, another fossil ray-finned fish from Cenomanian-aged marine strata in Kansas was initially also considered an eel like Anguillavus, and was described as Anguillavus hackberryensis Martin, 1922. In 1981, the holotype of "A." hackberryensis was reexamined, and found to not group with the rest of the genus, but rather be a dercetid aulopiform fish.[2] Robins (1989) went as far as classifying Anguillavus as a whole as not an eel. However, later studies have firmly refuted this, and have consistently recovered Anguillavus as a stem-eel.[5][6]
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