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・ Paradrillia lithoria
・ Paradrillia melvilli
・ Paradrillia patruelis
・ Paradrillia sagamiana
・ Paradrina
・ Paradrina clavipalpis
・ Paradrina rebeli
・ Paradrino
・ Paradriopea
・ Paradriopea birmanica
・ Paradriopea fruhstorferi
・ Paradroid
・ Paradromius
・ Paradmete longicauda
・ Paradmete percarinata
Paradnatoceras
・ Parado River
・ Paradocus
・ Paradohertya
・ Paradoks
・ Paradol
・ Paradoliops
・ Paradoliops cabigasi
・ Paradoliops humerosa
・ Paradopaea
・ Parador
・ Paradora
・ Paradorella
・ Paradores in Puerto Rico
・ Paradoris


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Paradnatoceras : ウィキペディア英語版
Paradnatoceras

''Paradnatoceras'' is an extinct straight-shelled cephalopod genus that lived in what would become China during the Ordovician from 478.6 to about 461 mya, existing for approximately 17.6 Ma.〔(PaleoBiology Database: ''Paradnatoceras'', basic info )〕
==Taxonomy==
''Paradnatoceras'' is included in the Orthocerida according to Sepkoski (2002).〔J. J. Sepkoski. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560〕 Inclusion of the Orthocerida in the subclass Orthoceratoidea is according to more recent taxonomic opinion.〔Björn Kröger. A new genus of middle Tremadocian orthoceratoids and the Early Ordovician origin of orthoceratoid cephalopods. ''Acta Palaeontologica Polonica'' 53 (4): 745–749, 2008 ()〕 In older taxonomies,e.g.,〔Treatise on Invertebrate Paleontology, Part K, 1964; Teichert and Moore (eds)〕 the Orthocerida were included in the Nautiloidea.

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