''Triops vincentinus'' is a species of freshwater

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean gro ...

tadpole shrimp The order Notostraca, containing the single family Triopsidae, is a group of crustaceans known as tadpole shrimp or shield shrimp. The two genera, ''Triops'' and '' Lepidurus'', are considered living fossils, with similar forms having existed sinc ...

s. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

Portugal Portugal, officially the Portuguese Republic, In recognized minority languages of Portugal: :* mwl, República Pertuesa is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesian ...

, and only found within the

Faro District Faro District ( pt, Distrito de Faro ) is the southernmost district of Portugal, coincident with the Algarve region. The administrative centre, or district capital, is the city of Faro. Municipalities The district is composed of 16 municipalit ...

. It diverged from ''

Triops cancriformis ''Triops cancriformis'', European tadpole shrimp or tadpole shrimp, is a species of tadpole shrimp found in Europe to the Middle East and India. Due to habitat destruction, many populations have recently been lost across its European range, so ...

'' about 180 million years ago during the

Middle Jurassic The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations ...

Epoch.

References

{{Taxonbar, from=Q25418963 Notostraca Freshwater crustaceans of Europe Endemic arthropods of Portugal Faro District Jurassic crustaceans Extant Middle Jurassic first appearances Middle Jurassic animals Middle Jurassic Europe Crustaceans described in 2010