Psammodontidae
Extinct family of cartilaginous fishes
From Wikipedia, the free encyclopedia
Psammodontidae is an extinct family of holocephalans (sometimes referred to as bradyodonts)[1] known from the Carboniferous and Permian periods.[2] It is the only family of the order Psammodontiformes.[2] The order and family are named for the type genus, Psammodus, and all members are believed to have been durophagous nektobenthic carnivores.[3]
| Psammodontidae Temporal range: | |
|---|---|
| |
| Articulated tooth-plates of the psammodont Archaeobatis | |
 | |
| Isolated tooth-plate of the type genus Psammodus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Holocephali |
| Order: | †Psammodontiformes Obruchev, 1953 |
| Family: | †Psammodontidae |
| Type genus | |
| Psammodus Agassiz, 1834 | |
| Genera | |
| |
