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Cladoselachidae
Cladoselachidae is an extinct family of holocephalian cartilaginous fishes closely related to Symmoriiformes Symmoriiformes is an extinct order of holocephalians. Originally named Symmoriida by Zangerl (1981), it has subsequently been known by several other names. Lund (1986) synonymized the group with Cladodontida, while Maisey (2008) corrected the nam .... They are the only members of the order Cladoselachiformes and were characterized by having an elongated body with a spine in each of the two dorsal fins. References Cladoselachiformes ''Dictionary of Zoology'' (1999).Evolution and paleontology (fish) Animal Aqua. Devonian sharks Carboniferous sharks Permian sharks Prehistoric cartilaginous fish families Devonian first appearances Permian extinctions {{paleo-shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladodus
''Cladodus'' is an extinct genus of cartilaginous fishes in the family Cladoselachidae. As the name implies, they are a type of cladodont, primitive sharks with teeth designed to snag fish and swallow them whole, instead of sawing off chunks to swallow. Fossils of ''Cladodus'' have been found in Barkip, Scotland and in the Pitkin Formation (Carboniferous period) in Arkansas, United States. In addition, fossils attributable to ''Cladodus'' are known from the Manning Canyon Shale of Carboniferous age in the state of Utah. Species *†''Cladodus alternatus'' St. John & Worthen, 1875 *†''Cladodus angulatus'' Newberry & Worthen, 1866 *†''Cladodus bellifer'' St. John & Worthen, 1875 *†''Cladodus divaricatus'' Trautschold, 1874 *†''Cladodus elegans'' Newberry & Worthen, 1870 Remains (braincase and a tooth) have been found in Scotland (Clackmannan Group). *†''Cladodus eriensis'' Bryant, 1935 *†''Cladodus formosus'' Hay, 1902 *†''Cladodus gailensis'' Feichtinge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |