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Birkeniids
Birkeniiformes (Birkeniida or Birkeniids) is an extinct order of jawless fish belonging to the class Anaspida. Subtaxa A newer taxonomy based on the work of Mikko's Phylogeny Archive, Nelson, Grande and Wilson 2016 and van der Laan 2018. * Genus †'' Cowielepis'' Blom 2008 * Genus †'' Hoburgilepis'' Blom, Märss & Miller 2002 * Genus †'' Kerreralepis'' Blom 2012 * Genus †'' Maurylepis'' Blom, Märss & Miller 2002 * Genus †'' Rytidolepis'' Pander 1856 * Genus †'' Schidiosteus'' Pander 1856 * Genus †'' Silmalepis'' Blom, Märss & Miller 2002 * Genus †'' Vesikulepis'' Blom, Märss & Miller 2002 * Family † Pharyngolepididae Kiær 1924 corrig. ** Genus †'' Pharyngolepis'' Kiaer 1911 * Family † Pterygolepididae Obručhev 1964 corrig. ** Genus †'' Pterygolepis'' Cossmann 1920 'Pterolepis'' Kiaer 1911 non Rambur 1838 non De Candolle ex Miquel 1840; ''Pterolepidops'' Fowler 1947 * Family † Rhyncholepididae Kiær 1924 corrig. ** Genus †''Rhyncholepis'' Kiær 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterygolepis
''Pterygolepis'' is an extinct genus of jawless fish belonging to the order Birkeniiformes Birkeniiformes (Birkeniida or Birkeniids) is an extinct order of jawless fish belonging to the class Anaspida. Subtaxa A newer taxonomy based on the work of Mikko's Phylogeny Archive, Nelson, Grande and Wilson 2016 and van der Laan 2018. * Ge .... File:Pterygolepis nitidus Tuebingen.jpg, Fossil of ''Pterygolepis nitidus'', an extinct fish. Took the picture at Museum of Paleontology, Tübingen File:Pterygolepis.jpeg, ''Pterygolepis nitidus'' from Lower Silurian of Norway References External links * Birkeniiformes genera Fossil taxa described in 1920 {{paleo-jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liivilepis
''Liivilepis'' is an extinct genus of jawless fish belonging to the family Septentrioniidae. References External links * Birkeniiformes genera Fossil taxa described in 2002 {{paleo-jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birkenia
''Birkenia'' is a genus of extinct anaspid fish from Middle Silurian strata of Northern Europe, and Middle Silurian to possibly Earliest Devonian strata of Arctic Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ....Blom, Henning, T. Märss, and C. G. Miller. "Silurian and earliest Devonian birkeniid anaspids from the Northern Hemisphere." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 92.03 (2001): 263-323/ref> Birkeniid anaspids are covered by a series of small plates on the head and rod-shaped scales in a cheveron-like pattern on the trunk. Intact fossil specimens of ''B. elegans'' suggest the living animal reached a length of up to , and was an active swimmer. In addition to whole specimens and scale microfossils of ''B. elegans'', which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saarolepis
''Saarolepis'' is an extinct genus of jawless fish belonging to the family Birkeniidae Birkeniidae is an extinct family of jawless fish belonging to the order Birkeniiformes Birkeniiformes (Birkeniida or Birkeniids) is an extinct order of jawless fish belonging to the class Anaspida. Subtaxa A newer taxonomy based on the work .... References External links * Birkeniiformes genera Fossil taxa described in 1945 {{paleo-jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenopleuron
''Ctenopleuron'' is an extinct genus of jawless fish in the class Anaspida Anaspida ("without shield") is an extinct group of primitive jawless vertebrates that lived primarily during the Silurian period, and became extinct soon after the start of the Devonian. They were classically regarded as the ancestors of lampre .... References External links * Birkeniiformes genera Fossil taxa described in 1907 {{paleo-jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramsaasalepis
''Ramsaasalepis'' is an extinct genus of jawless fish. Its the type and only genus of the family Ramsaasalepididae, and contains the single species ''Ramsaasalepis porosa''. References External links * Birkeniiformes genera Fossil taxa described in 2002 {{paleo-jawless-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasanius
''Lasanius'' is a genus of basal anaspida from the Early Silurian. Its fossils are around 10 mm to 150 mm in length. Fossils have been found in Early Silurian-aged strata in Ayrshire, Muirkirk, Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ... and Seggholm. References R.H. Traquair M.D. LL.D. F.R.S. (1898) IX.—''Notes on Palœozoic fishes.''—No. II, Annals and Magazine of Natural History, 2:7, 67–70, DOI: 10.1080/00222939808678013 Traquair, R. (1899). XXXII.—Report on Fossil Fishes collected by the Geological Survey of Scotland in the Silurian Rocks of the South of Scotland. ''Transactions of the Royal Society of Edinburgh,'' ''39''(3), 827–864. doi:10.1017/S0080456800035237 External links Underwhelming Fossil Fish of the Month: Februa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyncholepis
''Rhyncholepis'' is an extinct genus of anaspida from the Late Silurian. It was 26 cm long. Fossils have been found in southern Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t .... References Fossil taxa described in 1911 Birkeniiformes genera Silurian jawless fish Fossils of Norway {{Silurian-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
