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Podocopa
The Podocopa are a subclass of ostracods. Members of the subclass Podocopa can be differentiated from the other subclass of ostracods ( Myodocopa) by the morphology of the second antenna: the Podocopa have a relatively long endopod, whereas the Myodocopa have a relatively long exopod. The seventh limb of the Podocopa has a variety of forms or is absent, but is never an annulated worm-like limb (as seen in some Myodocopa). Taxonomy The following orders and unplaced families are recognised in the subclass Podocopa: * Order Palaeocopida * Order PlatycopidaBrandão, S.N.; Antonietto, L.S; Nery, D.G.; Santos, S.G.; Karanovic, I. (2023). World Ostracoda Database. Platycopida. Accessed at: https://www.marinespecies.org/ostracoda/aphia.php?p=taxdetails&id=1612423. Retrieved 12 June 2023. *** Family †Cavellinidae Egorov, 1950 *** Family †Gotlandellidae Sarv, 1978 *** Family †Indivisiidae Egorov, 1954 *** Family †Kloedcytherellidae Kozur, 1985 *** Family †Kloedenellidae Ulric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ostracod
Ostracods, or ostracodes, are a Class (biology), class of the crustacean, Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 33,000 species (only 13,000 of which are extant taxon, extant) have been identified,Brandão, S.N.; Antonietto, L.S; Nery, D.G.; Santos, S.G.; Karanovic, I. (2023). World Ostracoda Database. Accessed at https://www.marinespecies.org/ostracoda on 2023-09-12. grouped into 7 valid orders. They are small crustaceans, typically around in size, but varying from , the latter in the case of the marine ''Gigantocypris.'' The largest known freshwater species is ''Megalocypris princeps'', which reach 8 mm in length. In most cases, their bodies are flattened from side to side and protected by a bivalve-like valve or "shell" made of chitin, and often calcium carbonate. The family Entocytheridae and many planktonic forms do not have calcium carbonate. The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped toget ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeocopida
Palaeocopida is an order of ostracods in the subclass Podocopa. Most species in the suborder are extinct, and only the genera '' Manawa'', '' Promanawa'', and '' Puncia'' in the family Punciidae are extant. The members of the family live in high-energy shallow marine environments of New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla .... Taxonomy The following suborders are recognised in the order Palaeocopida: * † Beyrichicopina * † Binodicopina * † Eridostracina * Kirkbyocopina * † Nodellocopina * † Palaeocopina References * Palaeocopida (Ostracoda) across the Permian–Triassic events: new data from southwestern Taurus (Turkey). Crasquin-Soleau S., Marcoux J., Angiolini L. and Nicora A., 2004, Journal of micropalaeontology, 23(1), pages 67–76, {{Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myodocopa
Traditionally, the Myodocopa and Podocopa have been classified as subclasses within the class Ostracoda, although there is some question about how closely related the two groups actually are. The Myodocopa are defined by possession of a poorly calcified carapace, and 8–9 articles in the exopod of the second antenna. The ventral margin of the carapace is not concave, and the valves do not overlap to a great extent. Although the carapace of myodocopans is poorly calcified, some fossils are known for the group. (In contrast, thousands of fossil species are named for the Podocopa). Of particular interest are those fossils for which the internal body parts (and not just the carapace) are preserved. This provides a lot more information about the likely relatives to the fossil taxa, including relatives still alive today. Two recent fossils of much interest have been found from Silurian The Silurian ( ) is a geologic period and system spanning 23.5 million years from the end of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krausellidae
''Krausella'' is an extinct genus of ostracod Ostracods, or ostracodes, are a Class (biology), class of the crustacean, Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 33,000 species (only 13,000 of which are extant taxon, extant) have been identified,Brandão, S.N.; Antoni ...s.Brandão, S.N.; Antonietto, L.S; Nery, D.G.; Santos, S.G.; Karanovic, I. (2023). World Ostracoda Database. ''Krausella'' Ulrich, 1894 †. Retrieved from https://www.marinespecies.org/ostracoda/aphia.php?p=taxdetails&id=770201 on 11 June 2023. It is the sole genus in family Krausellidae.Brandão, S.N.; Antonietto, L.S; Nery, D.G.; Santos, S.G.; Karanovic, I. (2023). World Ostracoda Database. Krausellidae Berdan in Benson et al., 1961 †. Accessed at: https://www.marinespecies.org/ostracoda/aphia.php?p=taxdetails&id=850739 on 2023-06-12 It includes two species: * †''Krausella minuta'' * †''Krausella spinosa'' References {{Taxonbar, from1=Q23890140, from2=Q23890138 Prehisto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podocopida
The Podocopida are an order of ostracods in the subclass Podocopa. It is the most diverse of the five orders of ostracods, and the only one with freshwater species. The group also has a rich fossil record A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved .... The superfamily Cytheroidea in the suborder Cytherocopina consists of non-swimming crawlers and burrowers. Most species are marine, but at least seven extant lineages have independently adapted to freshwater. The largest freshwater family is Limnocytheridae, with about 150 species in 20 genera. Taxonomy The following suborders and unassigned taxa are contained in the order Podocopida: * Superfamily Carbonitacea * Suborder Bairdiocopina * Suborder Cypridocopina * Suborder Cytherocopina * Suborder Darwinulocopina * Subor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytherellidae
Cytherellidae is the only living family of the ostracod Ostracods, or ostracodes, are a Class (biology), class of the crustacean, Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 33,000 species (only 13,000 of which are extant taxon, extant) have been identified,Brandão, S.N.; Antoni ... order Platycopida. Eyes are absent. It contains 11 genera: *†'' Abursus'' Loranger, 1954 *†'' Alveus'' Hamilton, 1942 *†'' Ankumia'' Veen, 1932 *'' Cytherella'' Jones, 1849 *'' Cytherelloidea'' Alexander, 1929 *†'' Geelongella'' McKenzie, Reyment & Reyment, 1991 *'' Grammcythella'' Swanson ''et al.'', 2005 *'' Inversacytherella'' Swanson ''et al.'', 2005 *'' Keijcyoidea'' Malz, 1981 *'' Platella'' Coryell & Fields, 1937 *†'' Staringia'' Veen, 1936 References External links * Ostracod families Podocopa Extant Jurassic first appearances {{ostracod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georg Ossian Sars
Prof Georg Ossian Sars HFRSE (20 April 1837 – 9 April 1927) was a Norway, Norwegian marine biology, marine and freshwater biology, freshwater biologist. Life Georg Ossian Sars was born on 20 April 1837 in Kinn (former municipality), Kinn, Norway (now part of Flora, Norway, Flora), the son of Pastor Michael Sars and Maren Sars; the historian Ernst Sars was his elder brother, and the singer and women's skiing pioneer Eva Nansen was his younger sister.Google Translate He grew up in Manger, Norway, Manger, Hordaland, where his father was the local priest. He studied from 1852 to 1854 at Bergen Cathedral School, from 1854 at Oslo Cathedral School, 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. Geor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (biology)
An antenna (plural: antennae) is one of a pair of appendages used for Sensory system, sensing in arthropods. Antennae are sometimes referred to as ''feelers''. Antennae are connected to the first one or two Segmentation (biology), segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing tactition, touch, air motion, heat, vibration (sound), and especially insect olfaction, smell or gustation, taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate (biology), substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
