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| | {{Ptychopariida}} | | {{Ptychopariida}} |
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| - | ==Phylogeny==
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| - | [[Polymera|<==]]Ptychopariida [Ptychopariina]
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| - | | ''i. s.'': ''[[Cyclolorenzella]]''
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| - | | [[Lisaniidae]]
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| - | | Onchonotinidae
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| - | | |--''Onchonotina'' Lu 1961
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| - | | `--''Onchonotus'' Raymond 1924
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| - | | ''Quebecaspis''
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| - | | ''Taenicephalites'' Rasetti 1961 [Parabolinoididae]
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| - | | |--*''T. macrops'' Rasetti 1961
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| - | | `--''T. plerus'' Shergold 1980
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| - | | ''Taenicephalus''
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| - | | |--''T. megalops'' Kobayashi 1938
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| - | | `--''T. polyaricus'' Rosova 1963
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| - | | [[Shumardiidae]]
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| - | | ''Guizhoucephalina'' Chien 1961
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| - | | `--*''G. longispina'' Chien 1961
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| - | | ''[[Onchonotellus]]''
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| - | | [[Leiostegiacea]]
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| - | | ''Elrathia kingi''
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| - | | ''Triarthrus''
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| - | |--+--[[Olenacea]]
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| - | | `--[[Phacopida]]
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| - | `--+--Calymenina
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| - | | |--''Flexicalymene meeki''
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| - | | `--''Calymene''
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| - | |--+--[[Ptychoparioidea]]
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| - | | `--''Basidechenella'' [Corynexochida]
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| - | | `--''B. lucasensis''
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| - | |--Asaphida [Asaphina]
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| - | | | ''i. s.'': ''Isotelus gigas''
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| - | | |--[[Asaphacea]]
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| - | | |--[[Ceratopygidae]]
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| - | | |--[[Cyclopygidae]]
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| - | | `--[[Dikelocephalacea]]
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| - | `--Illaenida [Illaenina]
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| - | |--''Scutellum''
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| - | `--''Bumastus''
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| - | |--''B. insignis''
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| - | `--''B. ioxus''
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| - |
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| - | <nowiki>*</nowiki> Type species of genus indicated
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| - |
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| - | == References ==
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| - | Eckert, J. D., & C. E. Brett. 2001. Early Silurian (Llandovery) crinoids from the Lower Clinton Group, western New York State. ''Bulletins of American Paleontology'' 360: 1-88.
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| - | Hong, P. S., J. G. Lee & D. K. Choi. 2003. Trilobites from the ''Lejopyge armata'' zone (upper Middle Cambrian) of the Machari Formation, Yongwol Group, Korea. ''Journal of Paleontology'' 77 (5): 895-907.
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| - | Owens, R. M. 2002. Cyclopygid trilobites from the Ordovician Builth-Llandrindod Inlier, central Wales. ''Palaeontology'' 45 (3): 469-485.
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| - | Prothero, D. R. 1998. ''Bringing Fossils to Life: An introduction to paleobiology''. WCB McGraw-Hill: Boston.
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| - | Shergold, J. H. 1980. Late Cambrian trilobites from the Chatsworth Limestone, western Queensland. ''Bureau of Mineral Resources, Geology and Geophysics – Bulletin'' 186: 1-111.
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| | ==Links== | | ==Links== |
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| | ==Credits== | | ==Credits== |
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| - | CKT071122 (phylogeny and references); [[Wikipedia]] (Introduction)
| + | [[Wikipedia]] (Introduction) |
