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Phlyctaeniidae
Phlyctaeniidae is an extinct family (biology), family of placoderm arthrodire fishes that lived during the Devonian period, mainly in Norway and North America. Classification Order Arthrodira Woodward, 1891 * Phlyctaenioidei Miles, 1973 ** Brachythoraci Gross, 1932 - (includes the well-known ''Dunkleosteus'', ''Dinichthys'', etc.) ** Williamsaspididae White, 1952 ** Groenlandaspididae Obruchev, 1964 ** Arctolepididae Heintz, 1937 ** Phlyctaeniidae Fowler, 1947 *** ''Aggeraspis'' Gross, 1962 *** ''Arctaspis'' Heintz, 1929 *** ''Arctolepis''? Eastman, 1908 - (may instead belong to Arctolepididae) *** ''Barwickosteus'' Young & Long, 2014 *** ''Cartieraspis'' Pageau, 1969 *** ''Diadsomaspis'' Gross, 1937 *** ''Dicksonosteus''? Goujet, 1975 - (may not belong to Phlyctaeniidae) *** ''Elegantaspis'' Heintz, 1929 - (may instead belong to trilobite genus ''Kazakhius'') *** ''Gaspeaspis'' Pageau, 1969 *** ''Grifftaylor'' Young & Long, 2014 *** ''Heintzosteus''? Goujet, 1984 - (may instead b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groenlandaspididae
Arthrodira (Greek for "jointed neck") is an Order (biology), order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine ecological niches. Arthrodires were the largest and most diverse of all groups of placoderms. Description Arthrodire placoderms are notable for the movable joint between armor surrounding their heads and bodies. Like all placoderms, they lacked distinct teeth; instead, they used the sharpened edges of a bony plate on their jawbone as a biting surface. The eye sockets are covered by a Sclerotic ring, bony ring, which supports the eye, a feature shared by birds and some ichthyosaurs. Early arthrodires, such as the genus ''Arctolepis'', were well-armoured fishes with flattened bodies. The largest member of this group, ''Dunkleosteus'', was a true superpredator of the latest Devonian period, reaching as much as 6 m in length. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthrodira
Arthrodira (Greek for "jointed neck") is an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine ecological niches. Arthrodires were the largest and most diverse of all groups of placoderms. Description Arthrodire placoderms are notable for the movable joint between armor surrounding their heads and bodies. Like all placoderms, they lacked distinct teeth; instead, they used the sharpened edges of a bony plate on their jawbone as a biting surface. The eye sockets are covered by a bony ring, which supports the eye, a feature shared by birds and some ichthyosaurs. Early arthrodires, such as the genus '' Arctolepis'', were well-armoured fishes with flattened bodies. The largest member of this group, ''Dunkleosteus'', was a true superpredator of the latest Devonian period, reaching as much as 6 m in length. In contrast, the long-nosed '' Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartieraspis
''Cartieraspis'' is an extinct genus of Phlyctaeniid placoderm fish which lived during the Middle Devonian period in North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... Whether or not it is morphologically different enough from its close relative and contemporary '' Phlyctaenius'' to be considered generically distinct is dubious. References Placoderms of North America Phlyctaeniidae Middle Devonian animals Arthrodire genera {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolpaspis
''Kolpaspis'' is an extinct genus of placoderm fish, which lived during the Middle Devonian period of North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... References Placoderms of North America Phlyctaeniidae Middle Devonian animals Arthrodire genera {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterogaspis
''Heterogaspis'' is an extinct genus of placoderm that lived during the Late Devonian period of Spitsbergen, Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of .... References Placoderms of Europe Phlyctaeniidae Arthrodire genera {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaspeaspis
''Gaspeaspis'' is an extinct genus of placoderm fish, which lived during the Middle Devonian period of North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... References Placoderms of North America Phlyctaeniidae Middle Devonian animals Arthrodire genera {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elegantaspis
''Elegantaspis reticornis'' is an arthrodire placoderm fish, which lived during the Early Devonian period in Spitsbergen, Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of .... References Phlyctaeniidae Fossils of Norway Placoderms of Europe {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicksonosteus
''Dicksonosteus'' is an extinct genus of basal arthrodire placoderm fish which lived during the Early Devonian period of Spitsbergen, Norway. Classification Within Arthrodira, ''Dicksonosteus'' is considered a member of Phlyctaenii, a paraphyletic grouping within the clade Phlyctaenioidei, basal to the suborder Brachythoraci. ''Dicksonosteus'' was once considered an actinolepid, but is now grouped within the family Phlyctaeniidae.Goujet, D. (1975). Dicksonosteus, un nouvel arthrodire du Dévonien du Spitsberg—Remarques sur le squelette viscéral des Dolichothoraci. ''Colloques internationaux du Centre National de la Recherche Scientifique'', 218, 81–99. ''Dicksonosteus'' is most closely related to ''Arctolepis'' and '' Heintzosteus''. Description ''Dicksonosteus'' is considered basal to the arthrodires, the most successful and widespread group of placoderms during the Devonian period notable for the movable joint between the armour sections surrounding their heads and b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctaspis
''Arctaspis'' is an extinct genus of placoderm fish, which lived during the Devonian period in what is now Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of .... References Arthrodire genera Placoderms of Europe Devonian placoderms Phlyctaeniidae Fossils of Norway {{Placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
