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List Of Echinodermata Orders
This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species as well as the extinct species of the exclusively marine phylum Echinodermata. Subphylum Crinozoa Class Crinoidea * Subclass Articulata (540 species) ** Order Bourgueticrinida ** Order Comatulida ** Order Cyrtocrinida ** Order Hyocrinida ** Order Isocrinida ** Order Millericrinida * Subclass †Flexibilia * Subclass † Camerata * Subclass †Disparida Image:Comaster schlegelii.JPG, ''Comaster schlegelii'' (Comatulida) Image:Holopus 2.jpg, ''Holopus sp.'' (Cyrtocrinida) Image:Encrinus liliiformis 4.JPG, '' Encrinus liliiformis'' ( Encrinida) Image:Calamocrinus diomedæ (Plate XXVIII) BHL4232451.jpg, '' Calamocrinus diomedae'' (Hyocrinida) Image:Proisocrinus ruberrimus.jpg, ''Proisocrinus ruberrimus'' (Isocrinida) Image:Liliocrinus polydactylus MHNT.jpg, '' Liliocrinus polydactylus'' (Millericrinida) Class Paracrinoidea † No or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophionereis Reticulata 1
''Ophionereis'' is a genus of echinoderms belonging to the family Ophionereididae. The genus has almost cosmopolitan distribution. Species: *'' Ophionereis albomaculata'' *'' Ophionereis amphilogus'' *'' Ophionereis andamanensis'' *'' Ophionereis annulata'' *'' Ophionereis australis'' *'' Ophionereis commutabilis'' *'' Ophionereis degeneri'' *'' Ophionereis diabloensis'' *'' Ophionereis dolabriformis'' *'' Ophionereis dubia'' *'' Ophionereis eurybrachiplax'' *'' Ophionereis fasciata'' *'' Ophionereis fusca'' *'' Ophionereis hexactis'' *'' Ophionereis intermedia'' *'' Ophionereis lineata'' *'' Ophionereis novaezelandiae'' *'' Ophionereis olivacea'' *'' Ophionereis perplexa'' *'' Ophionereis porrecta'' *''Ophionereis reticulata ''Ophionereis reticulata'', the reticulated brittle star, is a brittle star in the family Ophionereididae. It is found in shallow parts of the western Atlantic, Caribbean Sea and Gulf of Mexico. Description Like other brittle stars, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camerata (subclass)
The Camerata or camerate crinoids are an extinct subclass of Paleozoic stalked crinoids. They were some of the earliest crinoids to originate during the Early Ordovician, reached their maximum diversity during the Mississippian, and became extinct during the Permian–Triassic extinction event. Camerates are the sister group of Pentacrinoidea, which contains all other crinoids (including living species). The two largest camerate subgroups are the orders Diplobathrida and Monobathrida. Anatomically, they are distinguished by:Treatise on Invertebrate Paleontology, Volume T. Echinodermata: Crinoidea. Ubaghs et al. Editors: R. C. Moore and C. Teichert. 1978. *fused junctions between the plates of the cup *brachial plates incorporated into the cup *tegmen forming a rigid roof over the mouth *no less than ten and sometimes a very large number of free arms, often pinnulate Subdivisions * Order Cladida? * '' Adelphicrinus'' * '' Eknomocrinus'' * '' Cnemecrinus'' * '' Quechuacrinus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracrinoid
Paracrinoidea is an extinct class of blastozoan echinoderms. They lived in shallow seas during the Early Ordovician through the Early Silurian. While blastozoans are usually characterized by types of respiratory structures present, it is not clear what types of respiratory structures paracrinoids likely had. Despite the taxon's name, the paracrinoids are not closely related to crinoids. Paracrinoids are characterized by a mouth with two to five feeding arms arranged asymmetrically, or somewhat bisymmetrically. They have a U-shaped gut, and their anus is located next to the mouth. They have irregularly shaped bodies (theca), and a stem, superficially similar to crinoids, and may have used the stem to attach themselves to a substrate, although some reconstructions show them partially buried in sediment.Fossil Invertebrates, 1987, Boardman, Richard S., Cheetham, Alan H., and Rowell, Albert J., editors, pp. 580-1. Blackwell Scientific Publications. Only 13 to 15 genera are known. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haeckel Cystoidea
Ernst Heinrich Philipp August Haeckel (; 16 February 1834 – 9 August 1919) was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist. He discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms and coined many terms in biology, including ''ecology'', ''phylum'', ''phylogeny'', and ''Protista.'' Haeckel promoted and popularised Charles Darwin's work in Germany and developed the influential but no longer widely held recapitulation theory ("ontogeny recapitulates phylogeny") claiming that an individual organism's biological development, or ontogeny, parallels and summarises its species' evolutionary development, or phylogeny. The published artwork of Haeckel includes over 100 detailed, multi-colour illustrations of animals and sea creatures, collected in his ''Kunstformen der Natur'' ("Art Forms of Nature"), a book which would go on to influence the Art Nouveau artistic move ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proisocrinus Ruberrimus
''Proisocrinus ruberrimus'' is a species of crinoids that is in the monotypic genus ''Proisocrinus''. The genus is in the monotypic 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 ... Proisocrinidae Genus and species * Proisocrinidae ** ''Proisocrinus'' *** ''P. ruberrimus'' References Isocrinida Monotypic echinoderm genera Crinoid genera {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encrinus Liliiformis
''Encrinus'' is an extinct genus of crinoids, and "one of the most famous". It lived during the Late Silurian-Late Triassic, and its fossils have been found in Europe. History Fossils of ''Encrinus'' went by several names in Germany before the establishment of modern paleontology. In Lower Saxony, they were called ''Sonnenräder'' ("sun wheels"), while in Thuringia and Hesse they were called ''Bonifatiuspfennige'' ("Saint Boniface's pennies"). In southwestern Germany, they went by ''Hexengeld'' ("witches' money"). The animal was correctly reconstructed for the first time in 1729, although various parts of the animal had been described before that. ''Encrinus'' was described in 1764 by Johann Gerhard Reinhard Andreae. It was assigned to the order Encrinida by Jack Sepkoski in 2002. Description ''Encrinus'' possessed a large cup- or crown-like structure at the top of its body, which has been described as resembling "an unopened tulip." This "cup" could be between and long. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
