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Palaeospinacidae
Paleospinacidae is an extinct family of prehistoric sharks in the extinct order Synechodontiformes Synechodontiformes is an extinct order of prehistoric sharks, known from the Permian to the Paleogene. They are considered to be members of Neoselachii, the group that contains modern sharks and rays. Their placement in the group is uncertain, s .... References External links Prehistoric cartilaginous fish families Permian first appearances Paleogene extinctions {{paleo-shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antrigoulia
''Antrigoulia'' is an extinct genus of palaeospinacid shark from the Cretaceous period. It is named after a farm in the vicinity of the type locality called Mas d’Antrigoule. It is known from a single species consisting of isolated teeth from the Valanginian of 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 ..., ''A. circumplicata''. The name is derived from the concentric folds on the labial side of its teeth.Guinot, Guillaume & Henri, Cappetta & Adnet, Sylvain. (2014). A rare elasmobranch assemblage from the Valanginian (Lower Cretaceous) of southern France. Cretaceous Research. 48. 54–84. 10.1016/j.cretres.2013.11.014. References Palaeospinacidae Prehistoric cartilaginous fish genera {{Paleo-cartilaginous-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrourogaleus
''Macrourogaleus'' is a genus of palaeospinacid shark from 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 ... Solnhofen Limestone. It is probably related to '' Paraorthacodus'' due anatomical similarities seen in whole-body fossils of both genera. References External links * Prehistoric shark genera Jurassic sharks Palaeospinacidae Prehistoric cartilaginous fish genera Fossils of Germany {{paleo-cartilaginous-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemacanthus
''Nemacanthus'' (from el, νέμω , 'to distribute' and el, ἄκανθα , 'spine') is an extinct genus of prehistoric sharks in the family Palaeospinacidae. The species ''N. elegans'' is from the Triassic of Idaho, United States.H. M. Evans. 1904. A new cestraciont spine from the Lower Triassic of Idaho. University of California Publications, Bulletin of the Department of Geology 3(18), pages 397-402 See also * List of prehistoric cartilaginous fish genera This list of prehistoric cartilaginous fish genera is an attempt to create a comprehensive listing of all genera that have ever been included in the class chondrichthyes ''and'' are known from the fossil record. This list excludes purely vernacul ... References * Maisey, J. G. (1977). "The fossil selachian fishes Palaeospinax Egerton, 1872 and Nemacanthus Agassiz, 1837". Zoological Journal of the Linnean Society. 60 (3): 259–273. External links * * * * Palaeospinacidae Prehistoric shark genera Taxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeospinacidae
Paleospinacidae is an extinct family of prehistoric sharks in the extinct order Synechodontiformes Synechodontiformes is an extinct order of prehistoric sharks, known from the Permian to the Paleogene. They are considered to be members of Neoselachii, the group that contains modern sharks and rays. Their placement in the group is uncertain, s .... References External links Prehistoric cartilaginous fish families Permian first appearances Paleogene extinctions {{paleo-shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeospinax
''Palaeospinax'' is an extinct genus of shark which lived from the Early Triassic to the end of the Eocene epoch. Although several species have been described, the genus is considered ''nomen dubium'' because the type-specimen of the type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ..., ''Palaeospinax priscus'', lacks appropriate diagnostic characters to define the genus. Other species originally described as ''Synechodus'' were transferred to the genus '' Palidiplospinax''. References Further reading * {{Taxonbar, from=Q2308151, from2=Q22114365 Palaeospinacidae Prehistoric shark genera Triassic sharks Jurassic sharks Cretaceous sharks Paleocene sharks Eocene sharks Prehistoric fish of Europe Nomina dubia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraorthacodus
''Paraorthacodus'' is an extinct genus of cartilaginous fish. An unidentified species has been found in the Hasle Formation of Bornholm, Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of Denmark , establish .... References Jurassic sharks Prehistoric shark genera Palaeospinacidae Fossils of Denmark Hasle Formation {{paleo-shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synechodontiformes
Synechodontiformes is an extinct order of prehistoric sharks, known from the Permian to the Paleogene. They are considered to be members of Neoselachii, the group that contains modern sharks and rays. Their placement in the group is uncertain, some authors have considered them to be Galeomorphii, galeomorph crown-group sharks, while others have considered them to represent a stem-group to modern sharks. They have sometimes been considered a paraphyletic grouping, but Klug (2010) recovered the group as monophyletic. Members of the clade are united by two synapomorphies, "pseudopolyaulacorhize tooth root pattern present; labial root depression in basal view present". The oldest possible member of the clade are teeth from the early Permian (Cisuralian) of the Ural Mountains. Taxonomy Primarily after Klug (2010) * †Orthacodontidae de Beaumont, 1960 ** †''Sphenodus'' Agassiz, 1843 Early Jurassic - Paleocene **†''Occitanodus'' Guinot, Cappetta & Adnet, 2014, France, Early Creta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 In Paleontology
Arthropods Insects Archosauromorphs * ''Apatosaurus'' gastroliths documented.Cannon (1906). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167. * Wieland claims to have found stegosaur gastroliths.Wieland (1906). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167. Dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. References * * Sanders F, Manley K, Carpenter K. Gastroliths from the Lower Cretaceous sauropod Cedarosaurus weiskopfae. In: Tanke D.H, Carpenter K, editors. Mesozoic vertebrate life: new research inspired by the paleontology of Philip J. Currie. Indiana University Press; Bloomington, IN: 2001. pp. 166–180. * {{cite journal , last1 = Wieland , first1 = G. R. , year = 1906 , title = Dinosaurian gastroliths , url = https://zenodo.org/record/1447958, journal = Science , volume = 23 , issue = 595, pages = 819–821 , doi=10.1126/science.23.595.819-a , pmid=17756355 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Cartilaginous Fish Families
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] |
Permian First Appearances
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
