''Metacrinus'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of stalked
crinoid
Crinoids are marine animals that make up the 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 comatulids, which are ...
s in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Isselicrinidae
Isselicrinidae is one of four extant families of crinoids in the order Isocrinida.
Subfamilies and genera
* subfamily Diplocrininae Roux, 1981
** genus ''Cenocrinus'' Thomson, 1864 -- 1 species
** genus ''Endoxocrinus'' AH Clark, 1908 -- 5 sp ...
. 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 continen ...
from Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
to Australia.
Species
The World Register of Marine Species lists the following species in the genus:[
*'' Metacrinus costatus'' Carpenter, 1884
*'']Metacrinus interruptus
''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, 1884
*'' Metacrinus levii'' Améziane-Cominardi, 1990
*'' Metacrinus musorstomae'' 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
''Metacrinus rotundus'', the Japanese sea lily, is a marine invertebrate, a species of stalked crinoid in the family Isselicrinidae. It is a species found off the west coast of Japan, and is living near the edge of the continental shelf, around ...
'' 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'' AH Clark, 1908
References
Isselicrinidae
Crinoid genera
{{crinoidea-stub