Hymenocaris Explained

Hymenocaris is a genus of Cambrian crustaceans.

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]

Notes and References

1. 10.1098/rstb.1978.0005 . The morphology, mode of life, and affinities of Canadaspis perfecta (Crustacea: Phyllocarida), Middle Cambrian, Burgess Shale, British Columbia . . . 281 . 984 . 1978 . 439–487 . 2418038. 1978RSPTB.281..439B .
2. Web site: †Proschizoramia . Mikko's Phylogeny Archive . February 10, 2010 . Mikko Haaramo . March 11, 2008.