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Monobathrida
Monobathrida is an extinct order of crinoids. Genera * Aacocrinus * Abacocrinus * Abactinocrinus * Abathocrinus * Abatocrinus * Abludoglyptocrinus * Acacocrinus * Actinocrinites * Actinocrinus * Acrocrinus * Agaricocrinus * Agathocrinus * Alisocrinus * Allocrinus * Alloprosallocrinus * Amarsupiocrinus * Amblacrinus * Amonohexacrinus * Amphoracrinus * Amphoracrocrinus * Ancalocrinus * Archaeocalyptocrinus * Arthroacantha * Aryballocrinus * Athabascacrinus * Azygocrinus * Barrandeocrinus * Batocrinus * Beyrichocrinus * Bikocrinus * Blairocrinus * Bogotacrinus * Bohemicocrinus * Bolicrinus * Boliviacrinus * Brahmacrinus * Briarocrinus * Cactocrinus * Calliocrinus * Camarocrinus * Canistrocrinus * Cantharocrinus * Carolicrinus * Carpocrinus * Caucacrocrinus * Celtocrinus * Centriocrinus * Cerasmocrinus * Chinacrinus * Clarkeocrinus * Clematocrinus * Clonocrinus * Closterocrinus * Coelocrinus * Comanthocrinus * Compsocrinina * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinocrinites
''Actinocrinites'' (from , 'ray' and 'to perceive') is an extinct genus of crinoids. Fossil records This genus is known in the fossil record from the Devonian period to the Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ... period (age range: 360.7 to 290.1 million years ago). Fossils of species within this genus have been found in Australia, China, Europe and United States. Species Species within this genus include: *†''Actinocrinites batheri'' Whidborne 1896 *†''Actinocrinites brouweri'' Wanner 1924 *†''Actinocrinites zhaoae'' Waters et al. 2003 *†''Actinocrinites triacontadactylus'' References Monobathrida Devonian crinoids Carboniferous echinoderms of Europe Mississippian animals of North America Devonian first appearances Permian genus extinctio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinocrinus
''Actinocrinus'' is an extinct genus of crinoid from the Early Carboniferous of Europe and North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... Monobathrida Carboniferous crinoids Carboniferous echinoderms of Europe Mississippian animals of North America {{paleo-crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aacocrinus
''Aacocrinus'' is a genus of extinct sea lily from the Actinocrinitidae (or Patelliocrinidae) family. There are currently 14 species within this genus: * '' Aacocrinus acylus'' (Webster & Jell 1999) * '' Aacocrinus algeriaensis'' (Webster, Maples, Sevastopulo, Frest & Waters 2004) * '' Aacocrinus boonensis'' * '' Aacocrinus chouteauensis'' * '' Aacocrinus enigmaticus'' (Webster & Lane 1987) * '' Aacocrinus milleri'' * '' Aacocrinus nododorsatus'' (Bowsher 1955) * '' Aacocrinus protuberoarmatus'' (Missouri) * '' Aacocrinus sampsoni'' * '' Aacocrinus senectus'' * '' Aacocrinus spinosulus'' * '' Aacocrinus spinulosus'' * '' Aacocrinus tetradactylus'' (Missouri) * '' Aacocrinus triarmatus'' References Monobathrida Paleozoic echinoderms Prehistoric echinoderms of North America {{paleo-crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinoid
Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths of over . Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have a sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camerata (crinoid)
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'' * '' Quechuacrin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinoidea
Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths of over . Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have a short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
