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Scheenstia
''Scheenstia'' is an extinct genus of neopterygian ray-finned fish from the Late Jurassic–Early Cretaceous of Europe. Fossils have been found in both marine and freshwater environments. Most species of the genus were previously referred to the related genus ''Lepidotes'', but all Late Jurassic–Early Cretaceous species of that genus have since been re-classified as ''Scheenstia'' following detailed phylogenetic analysis. It is a member of Lepisosteiformes meaning that is closest living relates are gars. The teeth of ''Scheenstia'' are low and rounded, and were likely used for crushing hard shelled organisms (durophagy). One species, the marine ''Scheenstia maximus'' from the Late Jurassic of Germany, could reach body lengths in excess of 1.5 metres. Classification ''Scheenstia'' is related to the genus ''Lepidotes''. The latter has been one of the greatest actinopterygian wastebasket taxa, with one 2012 study finding species referrable to a minimum of three different and distan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scheenstia Maximus
''Scheenstia'' is an extinct genus of neopterygian ray-finned fish from the Late Jurassic–Early Cretaceous of Europe. Fossils have been found in both marine and freshwater environments. Most species of the genus were previously referred to the related genus ''Lepidotes'', but all Late Jurassic–Early Cretaceous species of that genus have since been re-classified as ''Scheenstia'' following detailed phylogenetic analysis. It is a member of Lepisosteiformes meaning that is closest living relates are gars. The teeth of ''Scheenstia'' are low and rounded, and were likely used for crushing hard shelled organisms (durophagy). One species, the marine ''Scheenstia maximus'' from the Late Jurassic of Germany, could reach body lengths in excess of 1.5 metres. Classification ''Scheenstia'' is related to the genus ''Lepidotes''. The latter has been one of the greatest actinopterygian wastebasket taxa, with one 2012 study finding species referrable to a minimum of three different and distan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepisosteoidei
Ginglymodi is a clade of ray-finned fish containing modern-day gars (Lepisosteidae) and their extinct relatives, including the family Lepidotidae and the orders Semionotiformes and Kyphosichthyiformes, and various other extinct taxa. Ginglymodi is one of the two major subgroups of the infraclass Holostei, the other one being Halecomorphi, which contains the bowfin and its fossil relatives. Fossil record The fossil record of ginglymodians goes back at least to the Anisian stage of the Triassic period, over 240 million years ago. '' Eosemionotus'' is one of the earliest ginglymodians. '' Acentrophorus'', another taxon from the Wuchiapingian stage of the late Permian, and '' Paracentrophorus'' from the Early Triassic epoch, could be even earlier members of the group. Ginglymodi was diverse and widespread during the Mesozoic era, but they represent a depauperate lineage today. The group first evolved in marine environments, but several lineages made separate transitions into fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ginglymodi
Ginglymodi is a clade of ray-finned fish containing modern-day gars (Lepisosteidae) and their extinct relatives, including the family Lepidotidae and the orders Semionotiformes and Kyphosichthyiformes, and various other extinct taxa. Ginglymodi is one of the two major subgroups of the infraclass Holostei, the other one being Halecomorphi, which contains the bowfin and its fossil relatives. Fossil record The fossil record of ginglymodians goes back at least to the Anisian stage of the Triassic period, over 240 million years ago. '' Eosemionotus'' is one of the earliest ginglymodians. '' Acentrophorus'', another taxon from the Wuchiapingian stage of the late Permian, and '' Paracentrophorus'' from the Early Triassic epoch, could be even earlier members of the group. Ginglymodi was diverse and widespread during the Mesozoic era, but they represent a depauperate lineage today. The group first evolved in marine environments, but several lineages made separate transitions into fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidotes
''Lepidotes'' (from el, λεπιδωτός , 'covered with scales') (previously known as ''Lepidotus'') is an extinct genus of Mesozoic ray-finned fish. It has been considered a wastebasket taxon, characterised by "general features, such as thick rhomboid scales and, for most of the species, by semi-tritorial or strongly with dozens of species assigned to it. Fossils attributed to ''Lepidotes'' have been found in Jurassic and Cretaceous rocks worldwide.López-Arbarello, A. (2012).Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii). ''PLoS One'', 7(7): e39370. It has been argued that ''Lepidotes'' should be restricted to species closely related to the type species ''L. gigas,'' which are only known from the Early Jurassic of Central Europe, with most other species being not closely related, with other species transferred to new genera such as ''Scheenstia.'' ''Lepidotes'' belongs to Ginglymodi, a clade of fish whose only living representatives are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the spawning of the Atlantic Ocean. However, at this time, the Atlantic Ocean was relatively narrow. Life forms of the epoch This epoch is well known for many famous types of dinosau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semionotidae
Semionotiformes is an order of primitive, ray-finned, primarily freshwater fish from the Middle Triassic (Anisian) to the Late Cretaceous (Maastrichtian). The best-known genus is ''Semionotus'' of Europe and North America. Their closest living relatives are gars (Lepisosteidae), with both groups belonging to the clade Ginglymodi within the Holostei. Classification * Order †Semionotiformes Arambourg & Bertin 1958 sensu López-Arbarello 2012 ** Genus ?†''Orthurus'' Kner 1866 ** Genus †'' Sangiorgioichthys'' Tintori & Lombardo 2007 ** Genus †''Luoxiongichthys'' Wen et al. 2011 ** Genus †''Aphanepygus'' Bassani 1879 ** Genus †'' Placidichthys'' Brito 2000 ** Family † Pleurolepididae Lütken 1871 *** Genus †'' Pleurolepis'' Agassiz 1863 non Quenstedt 1852 ** Family †Macrosemiidae Wagner 1860a corrig. Cope 1889 sensu Murray & Wilson 2009 acrosemii Wagner 1860a*** Genus †'' Eusemius'' Vetter 1881 *** Genus †'' Blenniomoeus'' Costa 1850 Calignathus.html"_;"title="' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous Bony Fish
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow 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 ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Ray-finned Fish Genera
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipurbeckia
''Callipurbeckia '' is an extinct genus of neopterygian ray-finned fish from the Jurassic and Cretaceous periods. Fossils have been found in Germany, Tanzania, and England. It contains three species, which were previously classified in the related genus ''Lepidotes ''Lepidotes'' (from el, λεπιδωτός , 'covered with scales') (previously known as ''Lepidotus'') is an extinct genus of Mesozoic ray-finned fish. It has been considered a wastebasket taxon, characterised by "general features, such as thic ...''.López-Arbarello, A. (2012).Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii). ''PLoS ONE'', 7(7): e39370. References Lepisosteiformes Prehistoric bony fish genera Jurassic bony fish Cretaceous bony fish Prehistoric fish of Africa Mesozoic fish of Europe {{Cretaceous-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrosemimimus
''Macrosemimimus'' is an extinct genus of semionotiform ray-finned fish from the Late Jurassic of Germany, England and France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac .... References Semionotiformes Jurassic animals of Europe {{Jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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