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Glypheoidea
The Glypheoidea (containing the glypheoid lobsters), is a group of lobster-like Decapoda, decapod crustaceans which forms an important part of fossil faunas, such as the Solnhofen limestone. These fossils included taxa such as ''Glyphea'' (from which the group takes its name), and ''Mecochirus'', mostly with elongated (often semichelate) chelipeds. This group of decapods is a good example of a living fossil, or a lazarus taxon, since until their discovery in the 1970s, the group was considered to have become extinct in the Eocene. The superfamily (taxonomy), superfamily Glypheoidea comprises five family (biology), families. The two extant taxon, extant species, ''Neoglyphea inopinata'' and ''Laurentaeglyphea neocaledonica'', are both in the family Glypheidae. Prehistoric abundance The first animals attributable to the Glypheoidea appeared in the Permian, Permo-Triassic. They were abundant in the Jurassic, but declined from the Cretaceous to the Eocene. Extant taxa The Glypheoidea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoglyphea Inopinata
''Neoglyphea inopinata'' is a species of glypheoid lobster, a group thought long extinct before ''Neoglyphea'' was discovered. It is a lobster-like animal, up to around in length, although without claws. It is only known from 17 specimens, caught at two sites – one at the entrance to Manila Bay in the Philippines, and one in the Timor Sea, north of Australia. Due to the small number of specimens available, little is known about the species, but it appears to live up to five years, with a short larval phase. A second species, previously included in ''Neoglyphea'', is now placed in a separate genus, '' Laurentaeglyphea''. Taxonomy ''Neoglyphea inopinata'' was named in 1975 by Jacques Forest and Michèle de Saint Laurent of the ' in Paris. It was based on a single damaged specimen that had been caught by the USFC ''Albatross'' in the Philippines in 1908, and deposited in the United States National Museum. De Saint Laurent examined the unidentified specimen while working on Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurentaeglyphea Neocaledonica
''Laurentaeglyphea neocaledonica'' is a species of glypheoid lobster, and the only species in the genus ''Laurentaeglyphea''. It is known from a single specimen collected on a guyot in the Coral Sea between Australia and New Caledonia. It is thought to be an active predator with colour vision, unlike its nearest living relative, ''Neoglyphea inopinata''. Description ''Laurentaeglyphea'' is known from a single adult female specimen, with a carapace in size. In life, the animal is whitish and marked with red patches, especially on the abdomen and the distal segments of the first pereiopods; the markings are much fainter on the carapace. ''Laurantaeglyphea'' has large reniform (kidney-shaped) eyes, more developed in the lower half than the upper. The epistome, behind the two pairs of antennae on the ventral side, is large, but considerably shorter than that of '' Neoglyphea''. ''Laurantaeglyphea'' has five pairs of pereiopods, all without true chelae (claws). Distribution The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decapoda
The Decapoda or decapods, from Ancient Greek δεκάς (''dekás''), meaning "ten", and πούς (''poús''), meaning "foot", is a large order of crustaceans within the class Malacostraca, and includes crabs, lobsters, crayfish, shrimp, and prawns. Most decapods are scavengers. The order is estimated to contain nearly 15,000 extant species in around 2,700 genera, with around 3,300 fossil species. Nearly half of these species are crabs, with the shrimp (about 3,000 species) and Anomura including hermit crabs, king crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder. The earliest fossils of the group date to the Devonian. Anatomy Decapods can have as many as 38 appendages, arranged in one pair per body segment. As the name Decapoda (from the Greek , ', "ten", and , '' -pod'', "foot") implies, ten of these appendages are considered legs. They are the pereiopods, found on the last five thoracic segments. In many decapods, one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glyphea
''Glyphea'' is a genus of fossil glypheoid crustaceans that lived from the Jurassic to the Eocene The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes .... It includes the following species: See also * '' Neoglyphea'' and '' Laurentaeglyphea'', the only extant glypheoids References Glypheidea Late Jurassic crustaceans Late Cretaceous crustaceans Eocene crustaceans Fossil taxa described in 1835 Prehistoric animals of Africa Prehistoric animals of Asia Cretaceous animals of South America Jurassic genus first appearances Eocene genus extinctions Paleocene crustaceans Early Cretaceous crustaceans Middle Jurassic crustaceans Early Jurassic crustaceans Cretaceous arthropods of Australia Decapod genera {{Decapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mecochirus
''Mecochirus'' is an extinct genus of lobster-like decapod crustaceans, containing 17 species. The Maxberg Specimen of ''Archaeopteryx ''Archaeopteryx'' (; ), sometimes referred to by its German name, "" ( ''Primeval Bird'') is a genus of bird-like dinosaurs. The name derives from the ancient Greek (''archaîos''), meaning "ancient", and (''ptéryx''), meaning "feather" ...'' was initially assigned to the type species, '' Mecochirus longimanatus'' before it was realised that it belonged to ''Archaeopteryx lithographica''. Paleoecology '' Mecochirus rapax'' may have lived inside or produced '' Thalassinoides'' burrows. References Glypheidea Decapod genera Prehistoric crustacean genera Jurassic crustaceans Prehistoric animals of Europe {{decapod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Fossil
A living fossil is a Deprecation, deprecated term for an extant taxon that phenotypically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living fossils commonly are of species-poor lineages, but they need not be. While the body plan of a living fossil remains superficially similar, it is never the same species as the remote relatives it resembles, because genetic drift would inevitably change its chromosomal structure. Living fossils exhibit punctuated equilibrium, stasis (also called "bradytely") over geologically long time scales. Popular literature may wrongly claim that a "living fossil" has undergone no significant evolution since fossil times, with practically no molecular evolution or Morphology (biology), morphological changes. Scientific investigations have repeatedly discredited such claims. The minimal superficial changes to living foss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naturkundemuseum Berlin - Mecochirus Longimanatus - Solnhofen
The Natural History Museum () is a natural history museum located in Berlin, Germany. It exhibits a vast range of specimens from various segments of natural history and in such domain it is one of three major museums in Germany alongside Naturmuseum Senckenberg in Frankfurt and Museum Koenig in Bonn. The museum houses more than 30 million zoological, paleontological, and mineralogical specimens, including more than ten thousand type specimens. It is famous for two exhibits: the largest mounted dinosaur in the world (a ''Giraffatitan'' skeleton), and a well-preserved specimen of the earliest known bird, ''Archaeopteryx''. The museum's mineral collections date back to the Prussian Academy of Sciences of 1700. Important historic zoological specimens include those recovered by the German deep-sea Valdiva expedition (1898–99), the German Southpolar Expedition (1901–03), and the German Sunda Expedition (1929–31). Expeditions to fossil beds in Tendaguru in former Deutsch Ostafri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comptes Rendus De L'Académie Des Sciences
(, ''Proceedings of the Academy of Sciences''), or simply ''Comptes rendus'', is a French scientific journal published since 1835. It is the proceedings of the French Academy of Sciences. It is currently split into seven sections, published on behalf of the Academy until 2020 by Elsevier: ''Mathématique, Mécanique, Physique, Géoscience, Palévol, Chimie, ''and'' Biologies.'' As of 2020, the ''Comptes Rendus'' journals are published by the Academy with a diamond open access model. Naming history The journal has had several name changes and splits over the years. 1835–1965 ''Comptes rendus'' was initially established in 1835 as ''Comptes rendus hebdomadaires des séances de l'Académie des Sciences''. It began as an alternative publication pathway for more prompt publication than the ''Mémoires de l'Académie des Sciences,'' which had been published since 1666. The ''Mémoires,'' which continued to be published alongside the ''Comptes rendus'' throughout the ninetee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoosystema
''Zoosystema'' is a peer-reviewed scientific journal published by the National Museum of Natural History, France (''Muséum national d'histoire naturelle''), covering research in animal biodiversity. Specific subjects within the journal's scope include comparative, functional and evolutionary morphology, phylogeny, biogeography, taxonomy and nomenclature, among others. Zoosystema publishes articles in English and French. Indexing The journal is abstracted and indexed by Current Contents, Biological Abstracts, ASFA ( Aquatic Sciences and Fisheries Abstracts), Pascal, Zoological Record, Journal Citation Index Expanded (SciSearch®) and Scopus Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. The ensuing competition between the two databases has been characterized as "intense" and is c .... References {{Authority control Zoology journals Animal science journals Open acce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Caledonia
New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of the French Republic, a legal status unique in overseas France, and is enshrined in a dedicated chapter of the French Constitution. The archipelago, part of the Melanesia subregion, includes the main island of Grande Terre (New Caledonia), Grande Terre, the Loyalty Islands, the Chesterfield Islands, the Belep archipelago, the Isle of Pines (New Caledonia), Isle of Pines, and a few remote islets. The Chesterfield Islands are in the Coral Sea. French people, especially locals, call Grande Terre , a nickname also used more generally for the entire New Caledonia. Kanak people#Agitation for independence, Pro-independence Kanak parties use the name (''pron.'' ) to refer to New Caledonia, a term coined in the 1980s from the ethnic name of the indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
