''Rhadinichthys'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of prehistoric

bony fish Osteichthyes (), popularly referred to as the bony fish, is a diverse superclass of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartila ...

. It is known from several

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

that lived in the

Late Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

epoch In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured. The moment of epoch is usually decided by ...

, the Carboniferous period and the

Cisuralian The Cisuralian is the first series/epoch of the Permian. The Cisuralian was preceded by the Pennsylvanian and followed by the Guadalupian. The Cisuralian Epoch is named after the western slopes of the Ural Mountains in Russia and Kazakhstan and ...

epoch (early

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Pale ...

) in what is now Europe, South Africa, and North and South America. Some isolated scales from the Cisuralian of Europe (Belgium, France, Russia) were also referred to this genus. ''Rhadinichthys'' belongs to the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Rhadinichthyidae together with ''

Cycloptychius ''Cycloptychius'' is an extinct genus of prehistoric bony fish that existed in the Late Devonian epoch and the Carboniferous period in what is now France, Russia and the United Kingdom. See also * Prehistoric fish * List of prehistoric bon ...

'', '' Cyranorhis'', '' Mentzichthys'' and '' Wendyichthys''.

Species

The following species are referred to the genus ''Rhadinichthys''. *''R. ornatissimus'' (Agassiz, 1835) (

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen( ...

) 'R. lepturus'' Traquair, 1877*''R. alberti'' (Jackson, 1851) *''R. argentinicus'' Tornquist, 1904 *''R. brevis'' Traquair, 1877 *''R. canobiensis'' Traquair, 1909 'R. geikei'' Traquair, 1881; ''R. delicatulus'' Traquair, 1881; ''R. elegantulus'' Traquair, 1890*''R. carinatus'' (Agassiz, 1835) 'R. tenuicauda'' Traquair, 1877*''R. ferox'' Traquair, 1877 *''R. formosus'' Traquair, 1904 *''R. glabrolepis'' Elliott, 2018 *''R. grossarti'' Traquair, 1878 *''R. hancocki'' (Atthey, 1875) *''R. hibernicus'' Traquair, 1911 *''R. laevis'' Traquair, 1911 *''R. macconochii'' Traquair, 1881 *''R. macrodon'' Traquair, 1877 *''R. monensis'' (

Egerton Egerton may refer to: People * Egerton (name), a list of people with either the surname or the given name * Egerton family, a British aristocratic family * George Egerton, pen name of Mary Dunne Bright (1859–1945), Australian-born writer Plac ...

, 1850) *''R.''? ''ornatocephalum'' Elliott, 2018 *''R.''? ''plumosum'' Elliott, 2018 *''R.''? ''rioniger'' Beltan, 1977 *''R. silvensis'' Yankevich, 1998 *''R. tuberculatus'' Traquair, 1881 *''R. wardi'' (Young, 1875)

Synonyms

The following species of ''Rhadinichthys'' were subsequently referred to other genera. *''Rhadinichthys modulus'' Dawson, 1877 → ''

Canobius ''Canobius'' (named for Canobie, the district where it was discovered) is an extinct genus of early ray-finned fish that lived in the Carboniferous period of Europe. ''Canobius'' was a small fish, in length. Compared with its earlier relativ ...

'' *''Rhadinichthys deani'' Eastman, 1908 → '' Kentuckia'' *''Rhadinichthys fusiformis'' Traquair, 1881 → '' Mesopoma'' *''Rhadinichthys devonicus'' Clarke, 1885 → '' Moythomasia'' *''Rhadinichthys reticulatus'' Williams, 1886 → ''Moythomasia'' *''Rhadinichthys planti'' Traquair, 1886 → '' Trawdenia''

References

External links

Bony fish in the online Sepkoski Database
Palaeonisciformes Carboniferous Argentina Fossils of Argentina Carboniferous Canada Fossils of Canada Carboniferous England Fossils of England Carboniferous Scotland Fossils of Scotland Permian Russia Fossils of Russia Carboniferous South Africa Fossils of South Africa Permian Uruguay Fossils of Uruguay {{palaeonisciformes-stub