Comatulida

Comatulida is an order of crinoids. Members of this order are known as feather stars and mostly do not have a stalk as adults. The oral surface with the mouth is facing upwards and is surrounded by five, often divided rays with feathery pinnules. Comatulids live on the seabed and on reefs in tropical and temperate waters.

Thalassometridae is a family of echinoderms belonging to the order Comatulida.

Promachocrinus is a genus of free-swimming, stemless crinoids. It was a monotypic genus, with the only species in the genus being Promachocrinus kerguelensis, until the discovery of four new species, establishment of two others previously described and the transfer of another species to the genus in 2023. Known for being coldwater crinoids, members of Promachocrinus are typically found in the seas around Antarctica and surrounding island groups, including under the sea ice. Previously known for having 20 arms, two of the species now included in the genus have 10 arms. Many of the species are c

Calometridae is a family of echinoderms belonging to the order Comatulida.

Charitometridae is a family of crinoids or feather stars in the phylum Echinodermata.

Colobometridae is a family of crinoids belonging to the order Comatulida. Members of this order are known as feather stars.

Pentametrocrinidae is a family of echinoderms belonging to the order Comatulida.

Comatulidae is a family of comatulid crinoids. Since 2015, it replaces the family Comasteridae.

Ausichicrinites is a genus of feather stars (comatulids) in the upper Jurassic period (Tithonian epoch), central western Ethiopia approximately 145 million years ago. This genus was found in the upper part of the Antalo Limestone Formation 2114 meters (6935 feet) in elevation. The genus name Ausichicrinites refers to William I. Aussich, a leading expert on the order comatulids, while the species name Ausichicrinites zelenskyyi was named in honor of the sixth president of Ukraine, Volodymyr Zelenskyy, in support of him during the Russian invasion of Ukraine which was ongoing at the time of its

Atelecrinidae is a family of crinoids or feather stars in the phylum Echinodermata. It was first described by Francis Arthur Bather in 1899.

Zenometridae is a family of echinoderms belonging to the order Comatulida.

Zygometridae is a family of echinoderms belonging to the order Comatulida.

Ptilometra is a genus of echinoderms belonging to the monotypic family Ptilometridae.

Pterocoma is an extinct genus of crinoids from the Late Jurassic of Europe.

species of echinoderm

species of echinoderm

REDIRECT Eudiocrinus

Phrynocrinidae is a family of echinoderms belonging to the order Comatulida.

Eudiocrinidae is a family of echinoderms belonging to the order Comatulida. The only genus is Eudiocrinus.

Guillecrinidae is a small family of echinoderms in the class Crinoidea, and contains the following genera and species below.

Notocrinus is a genus of crinoids, which contains two species, both endemic to the seas around Antarctica.

Asterometridae is a family of echinoderms belonging to the order Comatulida.