Elonichthys
Elonichthys is an extinct genus of prehistoric freshwater ray-finned fish known from the late Paleozoic. The genus sensu stricto contains three species known from the latest Carboniferous to the earliest Permian of freshwater ecosystems of Europe, but as a former wastebasket taxon, it contains many more dubiously-classified species from the Carboniferous and Permian of Europe, Greenland, South Africa, and North America.
Species
The following are species within Elonichthys sensu stricto:- †E. germari Giebel, 1848 - Late Carboniferous of Germany
- †E. fritschi Friedrich, 1878 - Early Permian of Germany
- †E. krejcii - Gzhelian of the Czech Republic
Former species
The following are more dubious species that were formerly classified into this genus. However, the majority have been found to no longer even be members of Elonichthyidae.- †E. aitkeni Traquair, 1886 - Carboniferous of England → Mesonichthys aitkeni
- †E. caudalis Traquair, 1877 - Middle Carboniferous of England → not an elonichthyid
- †E. egertoni - Middle Carboniferous of England → not an elonichthyid
- †E. gigas Fritsch, 1877 → Acrolepis gigas
- †E. macropterus → Rhabdolepis macropterus
- †E. peltigerus Newberry, 1856 - Moscovian of Illinois and Ohio, United States → not an elonichthyid. A well-known, numerous species in the Mazon Creek fossil beds.
- †E. portlocki - Tournaisian to Visean of England, including Northern Ireland → potentially an indeterminate elonichthyid
- †E. pulcherrimus Traquair, 1881 - Early Carboniferous of Scotland → not an elonichthyid
- †E. robisoni - Visean of Scotland → not an elonichthyid, most likely a kentuckiid
- †E. serratus Traquair, 1881 - Visean of Scotland → not an elonichthyid, most likely a palaeoniscid
- †E. semistriatus Traquair, 1877 → Moscovian of England → not an elonichthyid
- †E. striatus → Cosmoptychius striatus