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Mitsukurina
''Mitsukurina'' is a genus of mackerel shark in the family Mitsukurinidae. It contains one extant species, the goblin shark (''M. owstoni'') and more extinct species. The genus was described by American ichthyologist David Starr Jordan in 1898 and named in honour of Kakichi Mitsukuri. Species * †''Mitsukurina lineata'' (Probst, 1879) * †''Mitsukurina maslinensis'' (Pledge, 1967) * ''Mitsukurina owstoni The goblin shark (''Mitsukurina owstoni'') is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned anima ...'' Jordan, 1898 (goblin shark) References Bartonian first appearances Extant Eocene first appearances Shark genera Taxa named by David Starr Jordan Fish genera with one living species {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goblin Shark
The goblin shark (''Mitsukurina owstoni'') is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned animal has a distinctive profile with an elongated, flat snout, and highly protrusible jaws containing prominent nail-like teeth. It is usually between long when mature, though it can grow considerably larger such as one captured in 2000 that is thought to have measured . Goblin sharks are benthopelagic creatures that inhabit upper continental slopes, submarine canyons, and seamounts throughout the world at depths greater than , with adults found deeper than juveniles. Some researchers believe that these sharks could also dive to depths of up to , for short periods of time. Various anatomical features of the goblin shark, such as its flabby body and small fins, suggest that it is sluggish in nature. This species hunts for teleost fishes, ceph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsukurina Lineata
''Mitsukurina'' is a genus of mackerel shark in the family Mitsukurinidae. It contains one extant species, the goblin shark (''M. owstoni'') and more extinct species. The genus was described by American ichthyologist David Starr Jordan in 1898 and named in honour of Kakichi Mitsukuri. Species * †'' Mitsukurina lineata'' (Probst, 1879) * †'' Mitsukurina maslinensis'' (Pledge, 1967) * ''Mitsukurina owstoni The goblin shark (''Mitsukurina owstoni'') is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned anima ...'' Jordan, 1898 (goblin shark) References Bartonian first appearances Extant Eocene first appearances Shark genera Taxa named by David Starr Jordan Fish genera with one living species {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsukurina
''Mitsukurina'' is a genus of mackerel shark in the family Mitsukurinidae. It contains one extant species, the goblin shark (''M. owstoni'') and more extinct species. The genus was described by American ichthyologist David Starr Jordan in 1898 and named in honour of Kakichi Mitsukuri. Species * †''Mitsukurina lineata'' (Probst, 1879) * †''Mitsukurina maslinensis'' (Pledge, 1967) * ''Mitsukurina owstoni The goblin shark (''Mitsukurina owstoni'') is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned anima ...'' Jordan, 1898 (goblin shark) References Bartonian first appearances Extant Eocene first appearances Shark genera Taxa named by David Starr Jordan Fish genera with one living species {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitsukurinidae
Mitsukurinidae is a family of sharks with one living genus, ''Mitsukurina'', and four fossil genera: ''Anomotodon'', '' Protoscapanorhynchus'', ''Scapanorhynchus'', and '' Woellsteinia'', though some taxonomists consider ''Scapanorhynchus'' to be a synonym of ''Mitsukurina''. The only known living species is the goblin shark, ''Mitsukurina owstoni''. This family of sharks is named in honour of Kakichi Mitsukuri who brought the holotype of the only species in this family to David Starr Jordon to be scientifically described. The most distinctive characteristic of the goblin sharks is the long, trowel-shaped, beak-like snout, much longer than those of other sharks. Its long snout is covered with ampullae of Lorenzini that enable it to sense minute electric fields produced by nearby prey, which it can snatch up by rapidly extending its jaws. They also possess long, protrusible jaws. When the jaws are retracted, the shark resembles a grey nurse shark The sand tiger shark (''Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamniformes
The Lamniformes (, from Greek ''lamna'' "fish of prey") are an order of sharks commonly known as mackerel sharks (which may also refer specifically to the family Lamnidae). It includes some of the most familiar species of sharks, such as the great white, as well as more unusual representatives, such as the goblin shark and megamouth shark. Members of the order are distinguished by possessing two dorsal fins, an anal fin, five gill slits, eyes without nictitating membranes, and a mouth extending behind the eyes. Species in two families of Lamniformes – Lamnidae and Alopiidae – are distinguished for maintaining a higher body temperature than the surrounding water. Members of the group include macropredators, generally of medium-large size, including the largest macropredatory shark ever, the extinct ''Otodus megalodon,'' as well as large planktivores. The oldest member of the group is the small (~ long) carpet shark-like ''Palaeocarcharias,'' known from the Middle and Late Ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kakichi Mitsukuri
was a Japanese zoologist. Biography Kakichi Mitsukuri was born in Edo. In 1873 he came to the United States, where he received a Ph.D. degree from Yale in 1879 and from Johns Hopkins in 1883. He was appointed professor in the college of science of the Imperial University of Tokyo in 1882 and councilor of the university in 1893. In 1896, he was made head of the fur-seal commission and signed, on behalf of Japan, a treaty with the United States and Great Britain. In 1897, invited by the Lowell Institute in Boston, he gave lectures on "Social life in Japan" , translated into French in 1922 as "La vie sociale au Japon". In 1901 he became dean of the college of science of Tokyo University, and in 1907 he was decorated with the Order of the Sacred Temple in recognition of public service. In later life his time was largely occupied with administrative duties. He was regarded not only as one of the leading zoologists of Japan, but also as very influential in public life. His most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shark Genera
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used to refer to all extinct members of Chondrichthyes with a shark-like morphology, such as hybodonts and xenacanths. The oldest modern sharks are known from the Early Jurassic. They range in size from the small dwarf lanternshark (''Etmopterus perryi''), a deep sea species that is only in length, to the whale shark (''Rhincodon typus''), the largest fish in the world, which reaches approximately in length. Sharks are found in all seas and are common to depths up to . They generally do not live in freshwater, although there are a few known exceptions, such as the bull shark and the river shark, which can be found in both seawater and f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extant Eocene First Appearances
Extant is the opposite of the word extinct. It may refer to: * Extant hereditary titles * Extant literature, surviving literature, such as ''Beowulf'', the oldest extant manuscript written in English * Extant taxon, a taxon which is not extinct, such as an extant species * Extant Theatre Company, a disability arts organisation * ''Extant'' (TV series), an American television series * Hank Hall Hank Hall is a fictional character that appears in DC Comics. He first appeared in ''Showcase'' #75 (June 1968) as Hawk of Hawk and Dove. He later became the supervillain Monarch in the crossover event limited series ''Armageddon 2001''. After tha ..., also known as Extant, a DC Comics supervillain See also * Extent (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bartonian First Appearances
The Bartonian is, in the ICS's geologic time scale, a stage or age in the middle Eocene Epoch or Series. The Bartonian Age spans the time between . It is preceded by the Lutetian and is followed by the Priabonian Age. Stratigraphic definition The Bartonian Stage was introduced by Swiss stratigrapher Karl Mayer-Eymar in 1857. The name derives from the coastal village Barton-on-Sea (part of New Milton) in southern England. The Barton Group, a lithostratigraphic unit from the south English Hampshire Basin, is of Bartonian age. The distinction between group and stage was made in the second part of the 20th century, when stratigraphers saw the need to distinguish between litho- and chronostratigraphy. The base of the Bartonian is at the first appearance of the calcareous nanoplankton species ''Reticulofenestra reticulata''. In 2009, an official reference profile (GSSP) for the base of the Bartonian had not yet been established. The top of the Bartonian Stage (the base of the P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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