Isocrinidae is one of four

extant Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extinct, ...

families Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideall ...

of crinoids in the

order Order, ORDER or Orders may refer to: * Categorization, the process in which ideas and objects are recognized, differentiated, and understood * Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...

Isocrinida Isocrinida is an order of sea lilies which contains four extant families. Characteristics Members of this order are characterised by having a "heteromorphic" stalk; the stalk consists of a series of nodes with cirri, interspersed by several node ...

.Messing, C. (2014)
Isocrinidae Gislén, 1924
In: Messing, C. (2014) World List of Crinoidea. Accessed through: World Register of Marine Species

Genera

*'' Hypalocrinus'' A.H.Clark, 1908 (1 sp.) *'' Neocrinus'' Thomson, 1864 (2 spp.) *†?'' Archaeoisocrinus'' Webster and Jell 1999 *†'' Balanocrinus'' Agassiz 1847 *†'' Chariocrinus'' Hess 1972 *''

Metacrinus ''Metacrinus'' is a genus of stalked crinoids in the family Isselicrinidae. Members of this genus live on hard surfaces in deeper parts of the ocean. The genus has extant species and is also represented in the fossil record. Members of the genu ...

'' Carpenter 1882 *†subfamily Isocrininae Gislen 1924 **†'' Bakonycrinus'' Stiller 2011 **†'' Chladocrinus'' Agassiz 1836 **†'' Isocrinus'' von Meyer in Agassiz, 1836 **†'' Tyrolecrinus''

References

Isocrinida Echinoderm families Extant Middle Jurassic first appearances {{Crinoidea-stub