Qiannanites

	Qiannanites ''Qiannanites'' is a genus of goniatitid ammonites from the lower Carboniferous included in the Prodromitidae, which is part of the superfamily Karagandocerataceae, now known as the Karagandoceratoidea Karagandoceratoidea is an Early Carboniferous (Mississippian) superfamily within the ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to ....Qiannanites in Fossil Works Diagnosis The shell of ''Qiannanites'' is discoidal with a sharp venter, small umbilicus and rather high aperture. Ribs are faint. Coiling in involute, leaving only the outer whorl exposed. The ventral lobe of the suture is bifurcate with pronounced acute prongs References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Prodromitidae Prodromitidae is one of two families of the superfamily Karagandoceratoidea, a member of the Goniatitida order. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish Cuttlefish or cuttles are marine molluscs of the order Sepiida. They belong to the class Cephalopoda which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone, which is used for control of ..., and more distantly to the nautiloids. References The Paleobiology Databaseaccessed on 10/01/07 Goniatitida families Karagandocerataceae {{Goniatitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Goniatitida Goniatids, informally goniatites, are Ammonoidea, ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago (around Eifelian stage). Goniatites (goniatitids) survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become Permian–Triassic extinction event, extinct at the end of the Permian some 139 million years later. Morphology All goniatites possessed an external shell, which is divided internally into chambers filled with gas giving it buoyancy during the life of the animal. An open chamber at the front of the shell provided living space for the goniatitid animal, with access to open water through a ventral siphuncle. The general morphology and habit of goniatites was probably similar to that of their later relatives the Ammonitida, ammonites, being free swimming and possessing a head with two well developed eyes and arms (or tentacles). G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Karagandoceratoidea Karagandoceratoidea is an Early Carboniferous (Mississippian) superfamily within the ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ... order, Goniatitida, said to contain the Karagandoceratidae and Prodromitidae. Analysis Shells are discoidal to lenticular. Adult stages are oxygonic, having acute venters, or have distinct keels. The ventral lobe may be either bifurcate or trifurcate (two or three pronged) and there is a tendency to increase the number of elements ontogenetically in the suture. Taxonomic affinities In the most recent classifications, W.M. Furnish, et al., 2009 and GONIAT theKaraganoceratoidea, is divided into the families Karagandoceratidae and Prodromitidae, with '' Karagandoceras'', ''Bartzschiceras'' and ''Masonoceras'' included in the Karagando ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Mississippian Ammonites Mississippian may refer to: Mississippian (geology), a subperiod of the Carboniferous period in the geologic timescale, roughly 360 to 325 million years ago Mississippian culture, a culture of Native American mound-builders from 900 to 1500 AD Mississippian Railway, a short line railroad A native of Mississippi See also Mississippi (other) Mississippi is a state of the United States of America. Mississippi may also refer to: Places Mississippi River, a river in central United States * Mississippi River System, a system of rivers in the Mississippi River watershed * Mississippi ... {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Goniatitida Genera Goniatids, informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago (around Eifelian stage). Goniatites (goniatitids) survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct at the end of the Permian some 139 million years later. Morphology All goniatites possessed an external shell, which is divided internally into chambers filled with gas giving it buoyancy during the life of the animal. An open chamber at the front of the shell provided living space for the goniatitid animal, with access to open water through a ventral siphuncle. The general morphology and habit of goniatites was probably similar to that of their later relatives the ammonites, being free swimming and possessing a head with two well developed eyes and arms (or tentacles). Goniatite shells are small to medium in size, almost always l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Karagandocerataceae Karagandoceratoidea is an Early Carboniferous (Mississippian) superfamily within the ammonoid order, Goniatitida, said to contain the Karagandoceratidae and Prodromitidae. Analysis Shells are discoidal to lenticular. Adult stages are oxygonic, having acute venters, or have distinct keels. The ventral lobe may be either bifurcate or trifurcate (two or three pronged) and there is a tendency to increase the number of elements ontogenetically in the suture. Taxonomic affinities In the most recent classifications, W.M. Furnish, et al., 2009 and GONIAT theKaraganoceratoidea, is divided into the families Karagandoceratidae and Prodromitidae, with ''Karagandoceras'', ''Bartzschiceras'' and ''Masonoceras'' included in the Karagandocertidae. Previously, Deiter Korn (2006) included ''Karagandoceras'' along with ''Bartzschiceras'' and ''Masonoceras'' in the subfamily Karagandoceratinae which he included in the Prionoceratidae as part of the Prionocerataceae Prionoceratoidea is a supe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]

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