''Acadiocaris'' is an extinct genus of

malacostraca Malacostraca (from New Latin; ) is the largest of the six classes of crustaceans, containing about 40,000 living species, divided among 16 orders. Its members, the malacostracans, display a great diversity of body forms and include crabs, lobst ...

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 group ...

that existed in

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

during the

Upper Jurassic The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name ...

period. It was first named by Brooks in 1962, and contains the species ''Acadiocaris novascotica'', named by Copeland in 1957 for the Canadian province of

Nova Scotia Nova Scotia ( ; ; ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. Nova Scotia is Latin for "New Scotland". Most of the population are native Eng ...

. The genus ''Acadiocaris'' and its sister genera, '' Anthracocaris'' and '' Ophthalmapseudes'', are placed in the family Acadiocarididae in order

Tanaidacea The crustacean order Tanaidacea (known as tanaids) make up a minor group within the class Malacostraca. There are about 940 species in this order. Description Tanaids are small, shrimp-like creatures ranging from in adult size, with most specie ...

. The family was originally considered a

Spelaeogriphacea Spelaeogriphacea is an order of crustaceans that grow to no more than . Little is known about the ecology of the order. Only four species, all subterranean, have been described. Of the three genera, '' Potiicoara '' is known only from a cave in ...

References

External links

Prehistoric Malacostraca Jurassic crustaceans Prehistoric crustacean genera Monotypic crustacean genera Fossils of Canada Paleontology in Nova Scotia {{jurassic-animal-stub