Hymenocaris

Hymenocaris is a genus of Cambrian crustaceans.

Hymenocaris Temporal range: Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Life restoration of Hymenocaris vermicauda
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Crustacea
Class:	Malacostraca
Order:	†Hymenostraca Rolfe, 1969
Family:	†Hymenocarididae Haeckel, 1896
Genus:	†Hymenocaris Salter, 1853
Species:	†H. vermicauda
Binomial name
Hymenocaris vermicauda Salter, 1853

Taxonomy

Some species originally assigned to Hymenocaris were later transferred to Canadaspis, such as Canadaspis perfecta (Hymenocaris perfecta), leaving only Hymenocaris vermicauda.^[1] Differences between Hymenocaris and Canadaspis have been used to justify erecting a separate family, Hymenocarididae and order, Hymenostraca for Hymenocaris,^[1] although it is also sometimes placed in the family Canadaspididae and the order Canadaspidida.^[2]