This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species[1] as well as the extinct species of the exclusively marine phylum Echinodermata.
A brittle star, Ophionereis reticulataA sea cucumber from MalaysiaStarfish exhibit a wide range of colours
No orders recognized: class is divided up into four families, Eucladiidae, Sollasiniidae, Volchoviidae, and Rhenosquamidae. The inclusion of Rhenosquamidae within Ophiocistioidea is doubtful, as the organs identified in fossils of Rhenosquamus as the characteristic "scaly podia" otherwise diagnostic of ophiocistioids may not, in fact, be such structures.
^"Animal Diversity Web - Echinodermata". University of Michigan Museum of Zoology. Retrieved 26 August 2012.
^Sweet, Elizabeth (2005-11-22). . University of Bristol. Archived from the original on 2007-07-14. Retrieved 2008-05-07.
December 15, 2023
list, echinoderm, orders, this, concerns, various, classes, orders, into, which, taxonomists, categorize, roughly, 7000, extant, species, well, extinct, species, exclusively, marine, phylum, echinodermata, brittle, star, ophionereis, reticulataa, cucumber, fro. This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species 1 as well as the extinct species of the exclusively marine phylum Echinodermata A brittle star Ophionereis reticulataA sea cucumber from MalaysiaStarfish exhibit a wide range of colours Contents 1 Subphylum Crinozoa 1 1 Class Crinoidea 1 2 Class Paracrinoidea 1 3 Class Cystoidea 1 4 Class Edrioasteroidea 2 Subphylum Asterozoa 2 1 Class Ophiuroidea Brittle stars 2 2 Class Asteroidea Starfish 3 Subphylum Echinozoa 3 1 Class Echinoidea Sea urchins 3 2 Class Holothuroidea Sea cucumbers 3 3 Class Ophiocistioidea 3 4 Class Helicoplacoidea 4 Subphylum Blastozoa 4 1 Class Blastoidea 4 2 Class Eocrinoidea 5 Subphylum Homostelea Homalozoa 5 1 Class Ctenocystoidea 5 2 Class Soluta 5 3 Class Cincta 5 4 Class Stylophora 6 ReferencesSubphylum Crinozoa editClass Crinoidea edit nbsp CrinoidSubclass Articulata 540 species Order Bourgueticrinida Order Comatulida Order Cyrtocrinida Order Hyocrinida Order Isocrinida Order Millericrinida Subclass Flexibilia Subclass Camerata Subclass Disparida nbsp Comaster schlegelii Comatulida nbsp Holopus sp Cyrtocrinida nbsp Encrinus liliiformis Encrinida nbsp Calamocrinus diomedae Hyocrinida nbsp Proisocrinus ruberrimus Isocrinida nbsp Liliocrinus polydactylus Millericrinida nbsp Haeckel CystoideaClass Paracrinoidea edit No orders 13 to 15 genera are known order Comarocystitida Family Heckeritidae Heckerites Family Amygdalocystitidae Achradocystites Volborth 1870 Amygdalocystites Billings 1854 Ottawacystis Billingsocystis Oklahomacystis Parsley amp Mintz 1975 Bassler 1943 Ovulocystites Frest et al 1980 Family Comarocystitidae Balther 1899 Comarocystites Billings 1854 Implicaticystis Sinclairocystis order Platycystitida Family Platycystitidae Canadocystis Sigmacystis Platycystites Family Malocystitidae Malocystites Wellerocystis Family Bistomiacystitidae Bistomiacystis Doubtful paracrinoids Columbocystis Foerstecystis Springerocystis Ulrichocystis Paleocystites AllocystitesClass Cystoidea edit order Aristocystitida order Asteroblastida order Glyptosphaeritida order SphaeronitidaClass Edrioasteroidea edit nbsp Streptaster vorticellatus Edrioasteroidea order Edrioasterida order IsorophidaSubphylum Asterozoa editClass Ophiuroidea Brittle stars edit See also List of prehistoric brittle stars Order Euryalida Order Ophiurida Order Amphilepidida Order Ophiacanthida Order Ophioleucida Order Ophioscolecida nbsp Astroboa nuda Euryalida nbsp Ophiura ophiura Ophiurida nbsp Ophiolepis elegans Amphilepidida nbsp Ophiocoma erinaceus Ophiacanthida nbsp Ophioleuce seminudum Ophioleucida nbsp Ophiomyces frutectosus Ophioscolecida Class Asteroidea Starfish edit Infraclass Concentricycloidea Peripodida Superorder Forcipulatacea Brisingida Forcipulatida Superorder Spinulosacea Spinulosida Superorder Valvatacea Notomyotida Paxillosida Valvatida Velatida 2 Calliasterellidae Trichasteropsida nbsp Xyloplax janetae Peripodida nbsp Novodinia antillensis Brisingida nbsp Pisaster ochraceus Forcipulatida nbsp Echinaster sepositus Spinulosida nbsp Cheiraster echinulatus Notomyotida nbsp Astropecten aranciacus Paxillosida nbsp Linckia laevigata Valvatida nbsp Euretaster insignis Velatida Subphylum Echinozoa editClass Echinoidea Sea urchins edit nbsp Strongylocentrotus purpuratus a well armoured sea urchinOrder Diadematoida Order Echinothurioida Order Pedinoida Superorder Echinacea Order Arbacioida Order Echinoida Order Phymosomatoida Order Salenioida Order Temnopleuroida Superorder Gnathostomata Order Clypeasteroida sand dollars Order Holectypoida Superorder Atelostomata Order Holasteroida Order Spatangoida heart urchins nbsp Aspidodiadema hawaiiense an Aspidodiadematoida nbsp Diadema antillarum a Diadematoida nbsp Caenopedina hawaiiensis a Pedinoida nbsp Salenocidaris hastigera a Salenioida nbsp Arbacia lixula an Arbacioida nbsp Strongylocentrotus franciscanus a Camarodonta nbsp Stomopneustes variolaris a Stomopneustoida nbsp Asthenosoma marisrubri an Echinothurioida nbsp Pourtalesia wandeli a Holasteroida nbsp Maretia planulata a Spatangoida nbsp Echinoneus cyclostomus an Echinoneoida nbsp Clypeaster reticulatus a Clypeasteroida nbsp Echinolampas depressa an Echinolampadoida nbsp Eucidaris metularia a CidaroidaClass Holothuroidea Sea cucumbers edit See also List of prehistoric sea cucumbers Order Apodida Order Dendrochirotida Order Elasipodida Order Holothuriida Order Molpadida Order Persiculida Order Synallactida nbsp Euapta godeffroyi Apodida nbsp Cercodemas anceps Dendrochirotida nbsp Scotoplanes globosa Elasipodida nbsp Holothuria cinerascens Holothuriida nbsp Paracaudina australis Molpadida nbsp Hansenothuria benti Persiculida nbsp Stichopus herrmanni Synallactida Class Ophiocistioidea edit nbsp EuthemonNo orders recognized class is divided up into four families Eucladiidae Sollasiniidae Volchoviidae and Rhenosquamidae The inclusion of Rhenosquamidae within Ophiocistioidea is doubtful as the organs identified in fossils of Rhenosquamus as the characteristic scaly podia otherwise diagnostic of ophiocistioids may not in fact be such structures Class Helicoplacoidea edit No known orders 2 known species Helicoplacus curtisi and H guthiSubphylum Blastozoa editClass Blastoidea edit nbsp BlastoideaOrdre Coronata Order Fissiculata Order Spiraculata basal Macurdablastus Class Eocrinoidea edit nbsp Gogia spiralis Eocrinoidea Order Ascocystida Order Gogiida Order Imbricata Order Trachelocrinida Subphylum Homostelea Homalozoa edit nbsp Corthurnocystis a Stylophora Class Ctenocystoidea edit order Ctenocystida Class Soluta edit Class Cincta edit Class Stylophora edit order Cornuta order Mitrata References edit Animal Diversity Web Echinodermata University of Michigan Museum of Zoology Retrieved 26 August 2012 Sweet Elizabeth 2005 11 22 Asterozoa Fossil groups SciComms 05 06 Earth Sciences University of Bristol Archived from the original on 2007 07 14 Retrieved 2008 05 07 Retrieved from https en wikipedia org w index php title List of echinoderm orders amp oldid 1161656030, wikipedia, wiki, book, books, library,
