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Neocrinus Naresianus
''Neocrinus naresianus'' is a species of sea lily, echinoderms belonging to the family Balanocrinidae. It was previously part of the monotypic genus ''Hypalocrinus''; a study comparing ontogenetic development of brachial articulations suggested that the genus ''Hypalocrinus'' is in fact be a synonym of '' Neocrinus'', and the only species should be part of that genus. The species is found in Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms. It is a phytogeographical floristic region in the Paleotropical kingdom. It was first recognized as a distinct region .... References Isocrinida {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Herbert Carpenter
Philip Herbert Carpenter (6 February 1852 – 21 October 1891), Fellow of the Royal Society, FRS, British naturalist and crinoid authority, was the fourth son of William Benjamin Carpenter. Education and research Carpenter was educated at University College School, then at University College London, University College, and afterwards became a Scholar of Trinity College, Cambridge, Trinity College, Cambridge, where he graduated in 1874. He was a member of the scientific staff of the deep-sea exploring expeditions of H.M.S. ''Lightning'' (1868) and ''Porcupine'' (1869–1870). In 1875, he was appointed assistant naturalist to HMS Valorous (1851), H.M.S. ''Valorous'' accompanying Admiral Sir George Strong Nares's Arctic expedition to Disko Island, and spent the summer sounding and dredging in Davis Strait and the North Atlantic. Career After the 1872–1876 HMS Challenger (1858), HMS Challenger expedition had returned, he was asked in January 1878 by Sir Wyville Thomson to describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basionym
In the scientific name of organisms, basionym or basyonym means the original name on which a new name is based; the author citation of the new name should include the authors of the basionym in parentheses. The term "basionym" is used in both botany and zoology. In zoology, alternate terms such as original combination or protonym are sometimes used instead. Bacteriology uses a similar term, basonym, spelled without an ''i''. Although "basionym" and "protonym" are often used interchangeably, they have slightly different technical definitions. A basionym is the ''correct'' spelling of the original name (according to the applicable nomenclature rules), while a protonym is the ''original'' spelling of the original name. These are typically the same, but in rare cases may differ. When creating new taxonomic names, there are specific rules about how basionyms can be used. A new combination or name at new rank must be based directly on the original basionym rather than on any intermediate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Lily
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] |
Echinoderm
An echinoderm () is any animal of the phylum Echinodermata (), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies". While bilaterally symmetrical as larvae, as adults echinoderms are recognisable by their usually five-pointed radial symmetry (pentamerous symmetry), and are found on the sea bed at every ocean depth from the intertidal zone to the abyssal zone. The phylum contains about 7,600 living species, making it the second-largest group of deuterostomes after the chordates, as well as the largest marine-only phylum. The first definitive echinoderms appeared near the start of the Cambrian. Echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs and limbs; in some cases, they can undergo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanocrinidae
Balanocrinidae is one of four Neontology, extant family (biology), families of crinoids in the Order (biology), order Isocrinida, though most of its members are Extinction, only known from the fossil record. Subfamilies and genera Family Balanocrinidae Roux, 1981 * Subfamily Balanocrininae Roux, 1981 ** Genus ''Balanocrinus'' Agassiz in Desor, 1845 ** Genus ''Cainocrinus'' Forbes, 1852 ** Genus ''Laevigatocrinus'' Vladimir Grigorievich Klikushin, Klikushin, 1979 ** Genus ''Neocrinus'' Thomson, 1864 ** Genus ''Papacrinus'' Roux & Philippe, 2021 ** Genus ''Singularocrinus'' Klikushin, 1982 * Subfamily Diplocrininae Roux, 1981 ** Genus ''Doreckicrinus'' Rasmussen, 1961 ** Genus ''Endoxocrinus'' AH Clark, 1908 *** Subgenus Endoxocrinus (Diplocrinus) Ludwig Heinrich Philipp Döderlein, Döderlein, 1912 ** Genus ''Nielsenicrinus'' Rasmussen, 1961 ** Genus ''Teliocrinus'' Döderlein, 1912 * Subfamily Isselicrininae Klikushin, 1977 ** Genus ''Isselicrinus'' Rovereto, 1914 ** Genus ''Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Genus
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ontogenetic
Ontogeny (also ontogenesis) is the origination and development of an organism (both physical and psychological, e.g., moral development), usually from the time of fertilization of the egg to adult. The term can also be used to refer to the study of the entirety of an organism's lifespan. Ontogeny is the developmental history of an organism within its own lifetime, as distinct from phylogeny, which refers to the evolutionary history of a species. Another way to think of ontogeny is that it is the process of an organism going through all of the developmental stages over its lifetime. The developmental history includes all the developmental events that occur during the existence of an organism, beginning with the changes in the egg at the time of fertilization and events from the time of birth or hatching and afterward (i.e., growth, remolding of body shape, development of secondary sexual characteristics, etc.). While developmental (i.e., ontogenetic) processes can influence sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachial
{{disambig ...
Brachial means "pertaining to the arm", and may refer to: * Brachial artery, in anatomy * Brachial fascia * Brachial lymph nodes * Brachial veins * Brachial plexus, a network of nerves * Brachial valve, the upper valve in Brachiopods * Brachialis muscle The brachialis (brachialis anticus) is a muscle in the upper arm that flexes the elbow. It lies beneath the biceps brachii, and makes up part of the floor of the region known as the cubital fossa (elbow pit). It originates from the anterior aspe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neocrinus
''Neocrinus'' is a genus of crinoids in the family Balanocrinidae, which is otherwise extinct (this genus being a relict). Members of this genus appeared in the fossil record 23.03 million years ago in the Miocene Epoch, and currently contains three known extant species. Species * '' Neocrinus blakei'' (Carpenter, 1884) * ''Neocrinus decorus'' (Thomson, 1864) * ''Neocrinus naresianus ''Neocrinus naresianus'' is a species of sea lily, echinoderms belonging to the family Balanocrinidae. It was previously part of the monotypic genus ''Hypalocrinus''; a study comparing ontogenetic development of brachial articulations suggested ...'' (Carpenter, 1884) References Isocrinida Crinoid genera Taxa described in 1864 {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malesia
Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms. It is a phytogeographical floristic region in the Paleotropical kingdom. It was first recognized as a distinct region in 1857 by Heinrich Zollinger, a Swiss botanist and explorer. The precise boundaries used to define Malesia vary. The broadly defined area used in '' Flora Malesiana'' consists of the countries of Malaysia, Singapore, Indonesia, Brunei, the Philippines, Timor-Leste and Papua New Guinea. The original definition by the World Geographical Scheme for Recording Plant Distributions (WGSRPD) covered a similar area, but New Guinea and some offshore islands were split off as Papuasia in its 2001 version. Floristic region Malesia was first recognized as a distinct floristic region in 1857 by Heinrich Zollinger, a Swiss botanist and explorer. In 1948 and 1950, Cornelius G. G. J. van Steenis developed the idea of Malesia, and put forward plans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
