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Myodocopina
Myodocopina is a suborder of ostracod Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 70,000 species (only 13,000 of which are extant) have been identified, grouped into several orders. They are small crustaceans, typic ...s. References Myodocopida Arthropod suborders {{Crustacean-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myodocopida
The Myodocopida is one of the two orders within the Myodocopa, in turn a subclass of the Ostracoda. The Myodocopida are distinguished by a worm-like seventh limb, and, usually, a rostrum above an incisure (notch) from which the antennae can protrude. Unlike other ostracods, many species of the Myodocopida have lateral compound eyes Over the last thirty years there has been much research into the morphology, behaviour and distribution of myodocopids. More recently, DNA sequences have been used to investigate the phylogeny A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spec ... of various groups. References External links * Crustacean orders Taxa named by Georg Ossian Sars {{Ostracod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostracod
Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 70,000 species (only 13,000 of which are extant) have been identified, grouped into several orders. They are small crustaceans, typically around in size, but varying from in the case of ''Gigantocypris''. Their bodies are flattened from side to side and protected by a bivalve-like, chitinous or calcareous valve or "shell". The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped together based on gross morphology. While early work indicated the group may not be monophyletic and early molecular phylogeny was ambiguous on this front, recent combined analyses of molecular and morphological data found support for monophyly in analyses with broadest taxon sampling. Ecologically, marine ostracods can be part of the zooplankton or (most commonly) are part of the benthos, living on or inside the upper layer of the sea floor. While Myodoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gigantocypris
The giant ostracod (''Gigantocypris'') or the giant seed shrimp is a genus of ostracod crustaceans in family Cypridinidae, and among the most well-known members of the class Ostracoda (together with ''Vargula hilgendorfii''). Its members are extremely large for ostracods, measuring up to across, have a globular shape, are typically semi-transparent orange or reddish, and while compound eyes are absent they have a large pair of mirror-like naupliar eyes that are used to locate their small animal prey. They are found worldwide in dark, deep and cold oceans. Range and habitat ''Gigantocypris'' are ubiquitous in open oceans around the world, ranging from tropical to polar regions. Although locally abundant, the distributions of the individual species are often not well known. ''G. dracontovalis'' is found worldwide, mostly deeper than the other species. ''G. agassizii'' is essentially a widespread Pacific species, and ''G. muelleri'' a widespread Atlantic and Southern Ocean specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylindroleberidoidea
Cylindroleberididae is a family of ostracods that shows remarkable morphological diversity. The defining feature is the possession of gills: 7–8 leaf-like pairs at the posterior of the body. Other features common to all species in the family include a "baleen-comb" on both the maxilla and the fifth limb, a sword-shaped coxal endite on the mandible, and the triaenid bristles on the basal endites of the mandible. Species of the Cylindroleberididae are found in marine areas, from shallow waters to depths of more than . Most species are approximately long. In 2006, there were 219 described species. A fossil discovered in 2003 with preserved soft parts has been assigned to the Cylindroleberididae. The fossil appears to have gills and is thought to date from . Subtaxa Cylindroleberididae contains the following subfamilies and genera. * Asteropteroninae Kornicker, 1981 **'' Actinoseta'' Kornicker, 1958 **'' Asteropteron'' Skogsberg, 1920 **'' Asteropterygion'' Kornicker, 1981 **'' M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Ossian Sars
Prof Georg Ossian Sars HFRSE (20 April 1837 – 9 April 1927) was a Norwegian marine and freshwater biologist. Life Georg Ossian Sars was born on 20 April 1837 in Kinn, Norway (now part of Flora), the son of Pastor Michael Sars and Maren Sars; the historian Ernst Sars was his elder brother, and the singer Eva Nansen was his younger sister.Google Translate He grew up in Manger, Hordaland, where his father was the local priest. He studied from 1852 to 1854 at Bergen Cathedral School, from 1854 at Christiania Cathedral School, and joined the university at Christiana (now the University of Oslo) in 1857. He indulged his interest in natural history while studying medicine; having collected water fleas in local lakes with Wilhelm Lilljeborg's works, he discovered new species, and this resulted in his first scientific publication. Georg Ossian Sars had a good memory and excellent drawing skills, and illustrated some of his father's zoological works. Sars was a founding investig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypridinoidea
Cypridinidae is a family of ostracods, containing the following genera: *'' Amphisiphonostra'' Poulsen, 1962 *''Azygocypridina'' Sylvester-Bradley, 1950 *'' Bathyvargula'' Kornicker, 1968 *'' Codonocera'' Brady, 1902 *'' Cypridina'' Milne-Edwards, 1840 *'' Cypridinodes'' Brady, 1902 *'' Doloria'' Skogsberg, 1920 *''Enewton'' Cohen & Morin, 2010 *''Gigantocypris'' Skogsberg, 1920 *'' Hadacypridina'' Poulsen, 1962 *'' Isocypridina'' Kornicker, 1975 *'' Jimmorinia'' Cohen & Kornicker ''in'' Cohen, Kornicker & Iliffe, 2000 *'' Kornickeria'' Cohen & Morin, 1993 *'' Lowrya'' Parker, 1998 *'' Macrocypridina'' Skogsberg, 1920 *'' Maristella'' Reda et al., 2019 *'' Melavargula'' Poulsen, 1962 *'' Metavargula'' Kornicker, 1970 *'' Monopia'' Poulsen, 1962 *'' Paracypridina'' Poulsen, 1962 *'' Paradoloria'' Poulsen, 1962 *'' Paravargula'' Cohen & Kornicker, 1975 *''Photeros ''Photeros'' is a genus in the Cypridinidae. The genus contains bioluminescent species, and is one of the genera of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suborder
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
