''Dalatias'' is a genus of kitefin sharks that have lived since the

Middle Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "da ...

. It was thought to be a

monotypic taxon In biology, a monotypic taxon is a taxonomic group ( taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

with the type species, '' D. licha'', considered as the only species until 2022, when Malyshkina and her colleagues described a new Middle Miocene species, ''D. orientalis''. ''D. orientalis'' is discovered from the Duho Formation in

Pohang Pohang () is a city in the province of North Gyeongsang, South Korea, and a main seaport in the Daegu-Gyeongbuk region. The built-up area of Pohang is located on the alluvium of the mouth of the Hyeongsan River. The city is divided into two ...

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korean Peninsula and sharing a land border with North Korea. Its western border is formed by the Yellow Sea, while its eas ...

References

{{Taxonbar, from=Q17289192 Shark genera Taxa named by Constantine Samuel Rafinesque Dalatiidae