Cytherellidae
Encyclopedia
Cytherellidae is a family
of ostracod
s, and is the only living family in the order, Platycopida, although the family Punciidae is also sometimes included. Members of the family have existed since the Jurassic
. It contains 6 genera:
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of ostracod
Ostracod
Ostracoda is a class of the Crustacea, sometimes known as the seed shrimp because of their appearance. Some 65,000 species have been identified, grouped into several orders....
s, and is the only living family in the order, Platycopida, although the family Punciidae is also sometimes included. Members of the family have existed since the Jurassic
Jurassic
The Jurassic is a geologic period and system that extends from about Mya to Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...
. It contains 6 genera:
- Cytherella Jones, 1849
- Cytherelloidea Alexander, 1929
- Grammcythella Swanson et al., 2005
- Inversacytherella Swanson et al., 2005
- Keijcyoidea Malz, 1981
- Platella Coryell & Fields, 1937