Kingdom Animalia Class Chondrichthyes Order Chimaeriformes | Phylum Chordata Subclass Holocephali Suborder Chimaeridae | |
Edaphodon hesperis was a prehistoric chimaeriform fish species belonging to the genus Edaphodon, of which all the species are now extinct. Edaphodon hesperis was a type of rabbitfish, a cartilaginous fish related to sharks and rays, and indeed, some rabbitfishes are still alive today.
References
Edaphodon hesperis Wikipedia(Text) CC BY-SA