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''Thomasinotus'' is an
extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of small prehistoric
ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...
that lived in the
Induan The Induan is the first age of the Early Triassic epoch in the geologic timescale, or the lowest stage of the Lower Triassic series in chronostratigraphy. It spans the time between 251.9 Ma and 249.9 Ma (million years ago). The Induan is so ...
age Age or AGE may refer to: Time and its effects * Age, the amount of time someone has been alive or something 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 The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 251.9 Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which ...
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 b ...
in what is now
Madagascar Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
. It belongs to the early
neopterygian Neopterygii (from Greek νέος ''neos'' 'new' and πτέρυξ ''pteryx'' 'fin') is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant f ...
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
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 ...
together with '' Albertonia'', ''
Candelarialepis ''Candelarialepis'' is an extinct genus of prehistoric marine ray-finned fish that lived during the Induan age of the Early Triassic epoch in what is now Nevada. It contains a single species, ''C. argentus''. It was described from the Candelaria ...
'', '' Icarealcyon'', ''
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' ...
'', '' Parasemionotus'', ''
Qingshania ''Qingshania'' is a genus of enigmatic eukaryote from the Chuanlinggou Formation and Gaoyuzhuang Formation of China. It contains two species, ''Qingshania magnifica'' and ''Qingshania kuanchengensis''. Description Both species have cells up ...
'', '' Stensioenotus'', '' Suius'', and ''
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). The ...
''.


See also

*
Prehistoric fish __NOTOC__ Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is ...
*
List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ...


References

Parasemionotiformes Early Triassic fish Prehistoric animals of Madagascar Fossil taxa described in 1952 Prehistoric ray-finned fish genera {{triassic-fish-stub