''Parasemionotus'' is an extinct genus 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 cartilag ...

that lived in the Induan

age Age or AGE may refer to: Time and its effects * Age, the amount of time someone or something has been alive or has existed ** East Asian age reckoning, an Asian system of marking age starting at 1 * Ageing or aging, the process of becoming older ...

of the Early Triassic epoch in what is now Madagascar. It is the name giving genus of the family

Parasemionotidae Parasemionotiformes is an extinct order of neopterygian ray-finned fish that existed globally during the Triassic period. It comprises the families Parasemionotidae and Promecosominidae. Many of the included genera are monotypic and most specie ...

and the

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Parasemionotiformes. This

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

includes, among others, the genera '' Albertonia'', ''

Candelarialepis ''Candelarialepis'' is an extinct genus of prehistoric ray-finned fish that lived during the Induan age of the Early Triassic epoch in what is now Nevada. It was described from the Candelaria Formation. See also * List of prehistoric bony fis ...

'', ''

Jacobulus ''Jacobulus'' is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic epoch in what is now northern Madagascar 252.3 to 251.3 million years ago. The type species is ''Jacobulus novus'' (monotypy). It was a small fi ...

'', ''

Lehmanotus ''Lehmanotus'' is an extinct genus of prehistoric bony fish that lived during the Early Triassic epoch in what is now Madagascar. It belongs to Parasemionotidae together with '' Albertonia'', ''Candelarialepis'', '' Jacobulus'', ''Parasemionotus' ...

'', '' Qingshania'', '' Stensioenotus'', '' Suius'', ''

Thomasinotus ''Thomasinotus'' is an extinct genus of small prehistoric ray-finned fish that lived in the Induan age of the Early Triassic epoch in what is now Madagascar. It belongs to the early neopterygian family Parasemionotidae together with '' Albertonia ...

'', ''

Watsonulus ''Watsonulus'' is an extinct genus of prehistoric ray-finned fish that lived during the Early Triassic epoch in what is now Madagascar. It may have also existed in what is now Himachal Pradesh, India, during the Induan age (Early Triassic).Romano ...

'', and possibly additional genera like '' Promecosomina''. Parasemionotiforms had a global distribution during the Early Triassic. Species of this family are found in Greenland, Madagascar, Canada, India,

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, United States, and possibly

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. The type species ''Parasemionotus labordei'' was first described under the name ''Semionotus labordei'' by Ferdinand Priem. Jean Piveteau later erected the new genus name ''Parasemionotus'' for this species. It is not closely related with ''

Semionotus ''Semionotus'' (from el, σημιον , 'mark' and el, νῶτος , 'back') is an extinct genus of ray-finned fish found throughout Northern Pangaea ( North America and Europe) during the late Triassic, becoming extinct in the Early Jurassic ...

''.

References

Parasemionotiformes Early Triassic fish Prehistoric animals of Madagascar Extinct animals of Europe Prehistoric ray-finned fish genera {{triassic-fish-stub