''Metacrinus'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of stalked
crinoid
Crinoids are marine animals that make up the Class (biology), class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or coma ...
s in the
family
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. Idea ...
Isselicrinidae. Members of this genus live on hard surfaces in deeper parts of the ocean. The genus has
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, ...
species and is also represented in the
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
record.
[ Members of the genus grow to a maximum height of and are found in the eastern ]Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contine ...
from Japan to Australia.
Species
The World Register of Marine Species lists the following species in the genus:[
*'']Metacrinus costatus
''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 genus ...
'' Carpenter, 1884
*'' Metacrinus interruptus'' Carpenter, 1884
*''Metacrinus levii
''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 genus ...
'' Améziane-Cominardi, 1990
*''Metacrinus musorstomae
''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 genus ...
'' Roux, 1981
*''Metacrinus nodosus
''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 genus ...
'' Carpenter, 1884
*'' Metacrinus rotundus'' Carpenter, 1885
*''Metacrinus serratus
''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 genus ...
'' Döderlein, 1907
*''Metacrinus wyvillii
''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 genus ...
'' Carpenter, 1884
*''Metacrinus zonatus
''Metacrinus zonatus'' is a sea lily from the Isselicrinidae family.
The scientific name of the species was published in 1908 by Austin Hobart Clark
Austin Hobart Clark (December 17, 1880 – October 28, 1954) was an American zoologist. ...
'' AH Clark, 1908
References
Isselicrinidae
Crinoid genera
{{crinoidea-stub