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Genus: Adiagoceras Kröger , 2008 † (DB: 2 SP)
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Adiagoceras subnotatum
(Barrande, 1868 †) (FOSSIL)
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Adiagoceras taouzense
Kröger, 2008 † (FOSSIL)
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Genus: Arionoceras Barskov, 1966 † (DB: 7 SP)
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Arionoceras arion
(Barrande †) (FOSSIL)
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Arionoceras canonicum
(Meneghini, 1843 †) (FOSSIL)
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Orthoceras affine Meneghini, 1857 † =» Arionoceras canonicum
(Meneghini, 1843 †)
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Arionoceras affine Meneghini, 1857 † =» Arionoceras canonicum
(Meneghini, 1843 †)
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Orthoceras arion Barrande, 1866 † =» Arionoceras canonicum
(Meneghini, 1843 †)
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Arionoceras capillosum
(Barrande, 1868 †) (FOSSIL)
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Psilorthoceras capillosum Barrande, 1868 † =» Arionoceras capillosum
(Barrande, 1868 †)
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Arionoceras fluminese
(Meneghini, 1857 †) (FOSSIL)
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Orthocycloceras fluminese Meneghini, 1857 † =» Arionoceras fluminese
(Meneghini, 1857 †)
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Orthoceras fluminese Meneghini, 1857 † =» Arionoceras fluminese
(Meneghini, 1857 †)
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Arionoceras kennethdebaetsi
M.A. Frey & al., 2014 † (FOSSIL)
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Arionoceras submoniliforme
(Meneghini, 1857 †) (FOSSIL)
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Arionoceras valens
(Barrande, 1868 †) (FOSSIL)
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Subgenus: Arionoceras (Joldagiroceras) Myagkova, 1967 † (DB: 1 SP)
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Arionoceras (Joldagiroceras) gyratum
Miagkowa, 1967 † (FOSSIL)
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Genus: Parakionoceras Foerste, 1928 † (DB: 2 SP)
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Parakionoceras originale
(Barrande, 1868 †) (FOSSIL)
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Parakionoceras striatopunctatum
(Barrande, 1868 †) (FOSSIL)
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Genus: Psilorthoceras Ristedt 1968 (DB: 1 SP)
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Psilorthoceras chaubetae
Ristedt, 1968 † (FOSSIL)
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