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					| 
						 
	
		| Rank | Name | Author |  
		| Phylum: | Mollusca |  |  
		| Class: | Cephalopoda |  |  
 
 |  
					| 
	
		| Subclass Actinoceratoidea
								
							
								,
							
								
									Ammonoidea
								
							
								,
							
								
									Bactritoidea
								
							
								,
							
								
									Coleoidea
								
							
								,
							
								
									Endoceratoidea
								
							
								,
							
								
									Nautiloidea
 |  
		| Order Belemnitida
 |  
		| Genus Abbasites
								
							
								,
							
								
									Acanthopleuroceras
								
							
								,
							
								
									Acanthoplites
								
							
								,
							
								
									Acrioceras
								
							
								,
							
								
									Acroteuthis
								
							
								,
							
								
									Adnatoceras
								
							
								,
							
								
									Aegasteroceras
								
							
								,
							
								
									Aegoceras
								
							
								,
							
								
									Agathiceras
								
							
								,
							
								
									Agoniatites
								
							
								,
							
								
									Alaskoceras
								
							
								,
							
								
									Almites
								
							
								,
							
								
									Amaltheus
								
							
								,
							
								
									Amaltheus (Pseudoamaltheus)
								
							
								,
							
								
									Ammonellipsites
								
							
								,
							
								
									Ammonellipsites (Fascipericyclus)
								
							
								,
							
								
									Amoeboceras
								
							
								,
							
								
									Amoeboceras ((Amoebites))
								
							
								,
							
								
									Amoeboceras (Amoebites)
								
							
								,
							
								
									Amoeboceras (Prionodoceras)
								
							
								,
							
								
									Anagaudryceras
								
							
								,
							
								
									Anapachydiscus
								
							
								,
							
								
									Anatropites
								
							
								,
							
								
									Anisoceras
								
							
								,
							
								
									Apoderoceras
								
							
								,
							
								
									Aptychus
								
							
								,
							
								
									Arcestes
								
							
								,
							
								
									Arcthoplites
								
							
								,
							
								
									Arcticoceras
								
							
								,
							
								
									Arctoasteroceras
								
							
								,
							
								
									Arctocephalites
								
							
								,
							
								
									Arctoceras
								
							
								,
							
								
									Arieticeras
								
							
								,
							
								
									Arietites
								
							
								,
							
								
									Arkelloceras
								
							
								,
							
								
									Arnioceras
								
							
								,
							
								
									Arniotites
								
							
								,
							
								
									Arpadites
								
							
								,
							
								
									Artinskia
								
							
								,
							
								
									Aspenites
								
							
								,
							
								
									Asthenoceras
								
							
								,
							
								
									Atractites
								
							
								,
							
								
									Aturia
								
							
								,
							
								
									Aulacoceras
								
							
								,
							
								
									Aulacosphinctoides
								
							
								,
							
								
									Bactrites
								
							
								,
							
								
									Baculites
								
							
								,
							
								
									Badouxia
								
							
								,
							
								
									Belemnites
								
							
								,
							
								
									Belemnopsis
								
							
								,
							
								
									Beudanticeras
								
							
								,
							
								
									Beyrichoceras
								
							
								,
							
								
									Bigotites
								
							
								,
							
								
									Bollandites
								
							
								,
							
								
									Borissiakoceras
								
							
								,
							
								
									Bradfordia
								
							
								,
							
								
									Brewericeras
								
							
								,
							
								
									Brodieia
								
							
								,
							
								
									Cadoceras
								
							
								,
							
								
									Cadoceras (Longaeviceras)
								
							
								,
							
								
									Cadoceras (Paracadoceras)
								
							
								,
							
								
									Cadoceras (Stenocadoceras)
								
							
								,
							
								
									Cadomites
								
							
								,
							
								
									Calliphylloceras
								
							
								,
							
								
									Callizoniceras
								
							
								,
							
								
									Caloceras
								
							
								,
							
								
									Calycoceras
								
							
								,
							
								
									Canadoceras
								
							
								,
							
								
									Canavarella
								
							
								,
							
								
									Cardioceras
								
							
								,
							
								
									Cardioceras (Scarburgiceras)
								
							
								,
							
								
									Cardioceras (Scoticardioceras)
								
							
								,
							
								
									Cardioceras (Vertebriceras)
								
							
								,
							
								
									Catacoeloceras
								
							
								,
							
								
									Catulloceras
								
							
								,
							
								
									Ceratites
								
							
								,
							
								
									Charmasseiceras
								
							
								,
							
								
									Choffatia
								
							
								,
							
								
									Chondroceras
								
							
								,
							
								
									Chondroceras (Defonticeras)
								
							
								,
							
								
									Cladiscites
								
							
								,
							
								
									Cleoniceras
								
							
								,
							
								
									Cleoniceras (Grycia)
								
							
								,
							
								
									Cleoniceras (Neosaynella)
								
							
								,
							
								
									Clionites
								
							
								,
							
								
									Cobbanites
								
							
								,
							
								
									Colvillia
								
							
								,
							
								
									Coroniceras
								
							
								,
							
								
									Cosmoceras
								
							
								,
							
								
									Cosmoceras (Cosmoceras)
								
							
								,
							
								
									Cosmoceras (Gulielmiceras)
								
							
								,
							
								
									Cosmonautilus
								
							
								,
							
								
									Cranocephalites
								
							
								,
							
								
									Cravenoceras
								
							
								,
							
								
									Cravenoceratoides
								
							
								,
							
								
									Crucilobiceras
								
							
								,
							
								
									Cycloceltites
								
							
								,
							
								
									Cycloceras
								
							
								,
							
								
									Cylindroteuthis
								
							
								,
							
								
									Cymatoceras
								
							
								,
							
								
									Dactylioceras
								
							
								,
							
								
									Dactylioceras (Orthodactylites)
								
							
								,
							
								
									Damesites
								
							
								,
							
								
									Daubichites
								
							
								,
							
								
									Denckmannia
								
							
								,
							
								
									Deroceras
								
							
								,
							
								
									Desmoceras
								
							
								,
							
								
									Desmoceras (Pseudoughligella)
								
							
								,
							
								
									Desmophyllites
								
							
								,
							
								
									Dettermanites
								
							
								,
							
								
									Dichotomites
								
							
								,
							
								
									Dictyoconites
								
							
								,
							
								
									Didymoceras
								
							
								,
							
								
									Dieneroceras
								
							
								,
							
								
									Dimorphoceras
								
							
								,
							
								
									Diplomoceras
								
							
								,
							
								
									Discamphiceras
								
							
								,
							
								
									Discophyllites
								
							
								,
							
								
									Discosphinctes
								
							
								,
							
								
									Discotropites
								
							
								,
							
								
									Docidoceras
								
							
								,
							
								
									Docidoceras (Pseudocidoceras)
								
							
								,
							
								
									Dolorthoceras
								
							
								,
							
								
									Dorsetensia
								
							
								,
							
								
									Eleganticeras
								
							
								,
							
								
									Emileia
								
							
								,
							
								
									Endoceras
								
							
								,
							
								
									Endolobus
								
							
								,
							
								
									Entogonites
								
							
								,
							
								
									Eoasianites
								
							
								,
							
								
									Eogunnarites
								
							
								,
							
								
									Eothalassoceras
								
							
								,
							
								
									Erycites
								
							
								,
							
								
									Erycitoides
								
							
								,
							
								
									Erycitoides (Erycitoides)
								
							
								,
							
								
									Erycitoides (Kialagvikes)
								
							
								,
							
								
									Eudmetoceras
								
							
								,
							
								
									Eudmetoceras (Edmetoceras)
								
							
								,
							
								
									Eudmetoceras (Euaptetoceras)
								
							
								,
							
								
									Euflemingites
								
							
								,
							
								
									Euhoploceras
								
							
								,
							
								
									Euloxoceras
								
							
								,
							
								
									Euomphaloceras
								
							
								,
							
								
									Eupachydiscus
								
							
								,
							
								
									Eutrephoceras
								
							
								,
							
								
									Exiteloceras
								
							
								,
							
								
									Fanninoceras
								
							
								,
							
								
									Fontanelliceras
								
							
								,
							
								
									Foordites
								
							
								,
							
								
									Franziceras
								
							
								,
							
								
									Freboldiceras
								
							
								,
							
								
									Gastrioceras
								
							
								,
							
								
									Gastroplites
								
							
								,
							
								
									Gastroplites (Gastropolites)
								
							
								,
							
								
									Gaudryceras
								
							
								,
							
								
									Germanonautilus
								
							
								,
							
								
									Girtyoceras
								
							
								,
							
								
									Glaphyrites
								
							
								,
							
								
									Glyptoxoceras
								
							
								,
							
								
									Goniatites
								
							
								,
							
								
									Goniotites
								
							
								,
							
								
									Gowericeras
								
							
								,
							
								
									Grammoceras
								
							
								,
							
								
									Grammoceras (Phlyseogrammoceras)
								
							
								,
							
								
									Grammoceras (Pseudogrammoceras)
								
							
								,
							
								
									Grantziceras
								
							
								,
							
								
									Grossouvria
								
							
								,
							
								
									Halorites
								
							
								,
							
								
									Hamites
								
							
								,
							
								
									Harpoceras
								
							
								,
							
								
									Haugia
								
							
								,
							
								
									Hecticoceras
								
							
								,
							
								
									Hecticoceras (Prohecticoceras)
								
							
								,
							
								
									Hibolites
								
							
								,
							
								
									Himavatites
								
							
								,
							
								
									Hoplocrioceras
								
							
								,
							
								
									Hoplotropites
								
							
								,
							
								
									Hulenites
								
							
								,
							
								
									Huroniella
								
							
								,
							
								
									Hypophylloceras
								
							
								,
							
								
									Idiohamites
								
							
								,
							
								
									Indonautilus
								
							
								,
							
								
									Iniskinites
								
							
								,
							
								
									Juvavites
								
							
								,
							
								
									Juvavites (Anatomites)
								
							
								,
							
								
									Juvenites
								
							
								,
							
								
									Kennecottia
								
							
								,
							
								
									Kepplerites
								
							
								,
							
								
									Kepplerites (Seymourites)
								
							
								,
							
								
									Kheraiceras
								
							
								,
							
								
									Kionoceras
								
							
								,
							
								
									Knightoceras
								
							
								,
							
								
									Kossmatella
								
							
								,
							
								
									Kossmaticeras
								
							
								,
							
								
									Labyrinthoceras
								
							
								,
							
								
									Lanceolites
								
							
								,
							
								
									Laqueoceras
								
							
								,
							
								
									Leconteites
								
							
								,
							
								
									Lemuroceras
								
							
								,
							
								
									Leptaleoceras
								
							
								,
							
								
									Leptosphinctes
								
							
								,
							
								
									Leptosphinctes (Persisphinctes)
								
							
								,
							
								
									Leptosphinctes (Prorsisphinctes)
								
							
								,
							
								
									Lilloetia
								
							
								,
							
								
									Lissoceras
								
							
								,
							
								
									Lytoceras
								
							
								,
							
								
									Lytoceras (Gaudryceras)
								
							
								,
							
								
									Lytoceras (Tetragonites)
								
							
								,
							
								
									Macrocephalites
								
							
								,
							
								
									Manticoceras
								
							
								,
							
								
									Marshallites
								
							
								,
							
								
									Meekoceras
								
							
								,
							
								
									Megaphyllites
								
							
								,
							
								
									Megarietites
								
							
								,
							
								
									Megasphaeroceras
								
							
								,
							
								
									Mesopuzosia
								
							
								,
							
								
									Michelinoceras
								
							
								,
							
								
									Microderoceras
								
							
								,
							
								
									Mitorthoceras
								
							
								,
							
								
									Moffitites
								
							
								,
							
								
									Mojsisovicsites
								
							
								,
							
								
									Mojsvaroceras
								
							
								,
							
								
									Monophyllites
								
							
								,
							
								
									Muensteroceras
								
							
								,
							
								
									Nautilus
								
							
								,
							
								
									Neoglyphioceras
								
							
								,
							
								
									Neohimavatites
								
							
								,
							
								
									Neophylloceras
								
							
								,
							
								
									Nodicoeloceras
								
							
								,
							
								
									Normannites
								
							
								,
							
								
									Normannites (Itinsaites)
								
							
								,
							
								
									Nostoceras
								
							
								,
							
								
									Notoceras
								
							
								,
							
								
									Ochetoceras
								
							
								,
							
								
									Oistoceras
								
							
								,
							
								
									Olcostephanus
								
							
								,
							
								
									Ophiceras
								
							
								,
							
								
									Oppelia
								
							
								,
							
								
									Oppelia (Liroxyites)
								
							
								,
							
								
									Oppelia (Oxycerites)
								
							
								,
							
								
									Ormoceras
								
							
								,
							
								
									Orthoceras
								
							
								,
							
								
									Otoites
								
							
								,
							
								
									Otoscaphites
								
							
								,
							
								
									Oxynoticeras
								
							
								,
							
								
									Pachydesmoceras
								
							
								,
							
								
									Pachydiscus
								
							
								,
							
								
									Pachydiscus (Neodesmoceras)
								
							
								,
							
								
									Pachydiscus (Pachydiscus)
								
							
								,
							
								
									Pachyteuthis
								
							
								,
							
								
									Paltarpites
								
							
								,
							
								
									Paltechioceras
								
							
								,
							
								
									Paltechioceras (Orthechioceras)
								
							
								,
							
								
									Paltopleuroceras
								
							
								,
							
								
									Parabigotites
								
							
								,
							
								
									Paracaloceras
								
							
								,
							
								
									Paraceltites
								
							
								,
							
								
									Paracoroniceras
								
							
								,
							
								
									Paragastrioceras
								
							
								,
							
								
									Paragastroplites
								
							
								,
							
								
									Parajaubertella
								
							
								,
							
								
									Paranautilus
								
							
								,
							
								
									Parapuzosia
								
							
								,
							
								
									Parareineckeia
								
							
								,
							
								
									Parasilesites
								
							
								,
							
								
									Parkinsonia
								
							
								,
							
								
									Patagiosites
								
							
								,
							
								
									Perisphinctes
								
							
								,
							
								
									Perisphinctes (Dichotomosphinctes)
								
							
								,
							
								
									Peritrochia
								
							
								,
							
								
									Phacoceras
								
							
								,
							
								
									Phylloceras
								
							
								,
							
								
									Phylloceras (Calliphylloceras)
								
							
								,
							
								
									Phylloceras (Holcophylloceras)
								
							
								,
							
								
									Phylloceras (Macrophylloceras)
								
							
								,
							
								
									Phylloceras (Partschiceras)
								
							
								,
							
								
									Phylloceras (Phylloceras)
								
							
								,
							
								
									Phyllopachyceras
								
							
								,
							
								
									Phymatoceras
								
							
								,
							
								
									Pinacites
								
							
								,
							
								
									Pinacoceras
								
							
								,
							
								
									Placites
								
							
								,
							
								
									Planammatoceras
								
							
								,
							
								
									Planisphinctes
								
							
								,
							
								
									Pleuroceras
								
							
								,
							
								
									Pleuronautilus
								
							
								,
							
								
									Pleydellia
								
							
								,
							
								
									Polyptychites
								
							
								,
							
								
									Polyptychoceras
								
							
								,
							
								
									Popanoceras
								
							
								,
							
								
									Popanoceras (Parapoponoceras)
								
							
								,
							
								
									Praestriaptuchus
								
							
								,
							
								
									Praestriaptychus
								
							
								,
							
								
									Proarcestes
								
							
								,
							
								
									Procerites
								
							
								,
							
								
									Proclydonautilus
								
							
								,
							
								
									Prodactylioceras
								
							
								,
							
								
									Prohauericeras
								
							
								,
							
								
									Pronorites
								
							
								,
							
								
									Proplacenticeras
								
							
								,
							
								
									Prorsisphinctes
								
							
								,
							
								
									Proshumardites
								
							
								,
							
								
									Prosphingites
								
							
								,
							
								
									Protocanites
								
							
								,
							
								
									Protogrammoceras
								
							
								,
							
								
									Protrachyceras
								
							
								,
							
								
									Pseudocadoceras
								
							
								,
							
								
									Pseudogastrioceras
								
							
								,
							
								
									Pseudolioceras
								
							
								,
							
								
									Pseudoparalegoceras
								
							
								,
							
								
									Pseudophyllites
								
							
								,
							
								
									Pseudopronorites
								
							
								,
							
								
									Pseudopulchellia
								
							
								,
							
								
									Pseudorthoceras
								
							
								,
							
								
									Pseudotoites
								
							
								,
							
								
									Psiloceras
								
							
								,
							
								
									Ptychoceras
								
							
								,
							
								
									Puzosia
								
							
								,
							
								
									Radstockiceras
								
							
								,
							
								
									Rayonnoceras
								
							
								,
							
								
									Reineckeia
								
							
								,
							
								
									Reineckeia (Kellawaysites)
								
							
								,
							
								
									Reineckeia (Reineckeites)
								
							
								,
							
								
									Sandlingites
								
							
								,
							
								
									Scalarites
								
							
								,
							
								
									Scaphites
								
							
								,
							
								
									Scaphites (Yezoites)
								
							
								,
							
								
									Schlotheimia
								
							
								,
							
								
									Schluteria
								
							
								,
							
								
									Sciponoceras
								
							
								,
							
								
									Siemiradzkia
								
							
								,
							
								
									Simbirskites
								
							
								,
							
								
									Sirenites
								
							
								,
							
								
									Skirroceras
								
							
								,
							
								
									Sonninia
								
							
								,
							
								
									Sonninia (Papilliceras)
								
							
								,
							
								
									Sonninia (Sonninites)
								
							
								,
							
								
									Sphaeoceras
								
							
								,
							
								
									Spiroceras
								
							
								,
							
								
									Spiticeras
								
							
								,
							
								
									Steinmannites
								
							
								,
							
								
									Stemmatoceras
								
							
								,
							
								
									Stenopronorites
								
							
								,
							
								
									Stephanoceras
								
							
								,
							
								
									Stephanoceras (Polyplectites)
								
							
								,
							
								
									Stikinoceras
								
							
								,
							
								
									Strigoceras
								
							
								,
							
								
									Strigogoniatites
								
							
								,
							
								
									Subarcthoplites
								
							
								,
							
								
									Subplanites
								
							
								,
							
								
									Subprionocyclus
								
							
								,
							
								
									Sudeticeras
								
							
								,
							
								
									Sulciferites
								
							
								,
							
								
									Sympolycyclus
								
							
								,
							
								
									Teloceras
								
							
								,
							
								
									Thisbites
								
							
								,
							
								
									Tmetoceras
								
							
								,
							
								
									Tmetoceras (Tmetoceras)
								
							
								,
							
								
									Tmetoceras (Tmetoites)
								
							
								,
							
								
									Tollia
								
							
								,
							
								
									Trachyceras
								
							
								,
							
								
									Tropaeum
								
							
								,
							
								
									Tropidoceras
								
							
								,
							
								
									Tropites
								
							
								,
							
								
									Tropites (Tropites)
								
							
								,
							
								
									Turrilites
								
							
								,
							
								
									Tylonautilus
								
							
								,
							
								
									Uptonia
								
							
								,
							
								
									Uraloceras
								
							
								,
							
								
									Waehneroceras
								
							
								,
							
								
									Watinoceras
								
							
								,
							
								
									Witchellia
								
							
								,
							
								
									Wyomingites
								
							
								,
							
								
									Xenocephalites
								
							
								,
							
								
									Xipheroceras
								
							
								,
							
								
									Zelandites
								
							
								,
							
								
									Zemistephanus
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