Gregoriidae
Extinct family of cartilaginous fishes
From Wikipedia, the free encyclopedia
Gregoriidae is an extinct family of early chondrichthyans from the Carboniferous period.[2] It currently includes three described genera: Gregorius, Srianta, and Bealbonn. This family includes remains formerly ascribed to the genus Desmiodus, which is now considered a nomen vanum or nomen dubium.[3][4] The relationships between the included genera are not entirely clear.[5] Fossils are known from Serpukhovian-aged formations including the Bear Gulch Limestone and Surprise Canyon Formation.[6]
Phylum:Chordata
Class:Chondrichthyes
Subclass:†Euchondrocephali
Family:†Gregoriidae
Lund and Grogan 2004[1]
Lund and Grogan 2004[1]
| Gregoriidae Temporal range: | |
|---|---|
| |
| Srianta cf. S. srianta from the Surprise Canyon formation | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | †Euchondrocephali |
| Family: | †Gregoriidae Lund and Grogan 2004[1] |
| Genera[citation needed] | |
