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Mesoteuthis
''Mesoteuthis'' is a genus of belemnite, an extinct group of cephalopods. Taxonomical history A belemnite originally described as ''Cylindroteuthis confessa'' has been re-described as ''Mesoteuthis soloniensis''. See also * Belemnite Belemnitida (or belemnites) is an extinct order (biology), order of squid-like cephalopods that existed from the Late Triassic to Late Cretaceous (And possibly the Eocene). Unlike squid, belemnites had an internal skeleton that made up the cone ... * List of belemnites References http://www.servinghistory.com/topics/Mesoteuthis Belemnites Jurassic cephalopods Extinct animals of Europe Toarcian first appearances Middle Jurassic extinctions {{paleo-cephalopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylindroteuthis
''Cylindroteuthis'' is a genus of belemnitida, belemnite that lived from the Early Jurassic to the Early Cretaceous. Its fossils have been found in Asia, Europe, North America, and New Zealand. Taxonomical history ''Cylindroteuthis'' was first described in 1879 by Claude-Emile Bayle. A belemnite originally described as the ''Cylindroteuthis'' species ''C. confessa'' has been re-described as ''Mesoteuthis soloniensis''. Paleobiology ''Cylindroteuthis'' is a common find from several Jurassic formations. Specimen length ranges from . The most commonly preserved part of the animal is its guard, or rostrum (anatomy), rostrum, which was composed of calcite. The guard would not have been found on the exterior of ''Cylindroteuthis'', as traces of blood vessels have been discovered on some guards, suggesting that it was an internal feature. The guard housed a phragmocone, which allowed ''Cylindroteuthis'' to maintain buoyancy in water. Some better-preserved specimens have features simila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Belemnites
This list of belemnite genera is an attempt to create a comprehensive listing of all genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ... that have ever been included in the extinct subclass Belemnoidea, excluding purely vernacular terms. The list includes all commonly accepted genera, as well as genera that are now considered invalid, doubtful (''nomen dubium, nomina dubia''), or were not formally published (''nomen nudum, nomina nuda''), as well as synonym (zoology), junior synonyms of more established names, and genera that are no longer considered belemites. Naming conventions and terminology follow the International Code of Zoological Nomenclature as indicated. The list currently contains 100 generic names. List of belemnites See also * Belemnoidea * List of ammoni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
