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Laugiidae
Laugiidae is an extinct family of prehistoric sarcopterygian fishes which lived during the Triassic and Jurassic period. Their fossils has been found in Germany, Greenland and China.Jinnan Tong, Xiugao Zhou, Douglas H. Erwin, Jingxun Zuo & Laishi Zhao: ''Fossil fishes from the Lower Triassic of Majiashan, Chaohu, Anhui Province, China''. Journal of Paleontology, 80(1), 2006, pp. 146-161PDF Genera * †'' Coccoderma'' * †''Laugia'' ( type) * †''Trachymetopon ''Trachymetopon'' is an extinct genus of prehistoric coelacanth from the Jurassic of Europe. Fossils have been found in the Early Jurassic Posidonia Shale of Germany the Middle Jurassic Marnes de Dives of France, and probably the Late Jurassic Ki ...'' References * Peter L. Forey: ''History of the Coelacanth Fishes.'' Springer Verlag GmbH, * Karl Albert Frickhinger: ''Fossilien Atlas Fische'', Mergus-Verlag, Melle, 1999, Prehistoric lobe-finned fish families Triassic bony fish Jurassic bony fish Jurassic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laugia
''Laugia'' is a genus of coelacanth fishes which lived during the Early Triassic epoch in Greenland. It contains one species, ''Laugia groenlandica'', named by Erik Stensiö in 1932. Along with the Early Triassic '' Belemnocerca'' and the 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 ... '' Coccoderma'', it forms the family Laugiidae. It can be distinguished from other laugiids by its smaller number of tail fin rays: 17–18 in the top lobe and 13–14 in the bottom lobe, compared to 21–22 in the top lobe for the other two genera. Most other coelacanths have symmetrical numbers of tail fin rays. References Prehistoric lobe-finned fish genera Triassic bony fish Fossils of Greenland {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coccoderma
''Coccoderma'' is a genus of prehistoric lobe-finned fish which lived during the Late Jurassic period, Kimmeridgian Stage. Fossils have been found in the USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori .... It was small in size, about 27.5 cm. They had very long and sharp teeth. Species * ''Coccoderma bavaricum'' REIS, 1888 * ''Coccoderma gigas'' REIS, 1888 * ''Coccoderma nudum'' REIS, 1888 References The Paleobiology Database [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of archo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
