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Class: CEPHALOPODA
--- Taxon Tree: ORTHOCERATOIDEA [Subclass]-ORTHOCERIDA [Order]
------ Family: SPHAERORTHOCERATIDAE Ristedt, 1968 † (Sea) (FOSSIL)
DB counters=34, Genus=7, Subgenus=0, Species=26, Subspecies=0, Synonyms=0, Images=5
DB counters include Fossil taxa: Species=26, Subspecies=0
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accuratum, Parasphaerorthoceras accuratum Ristedt, 1968 † (FOSSIL)
acerbum, Plagiostomoceras acerbum Zhuravleva, 2006 † (FOSSIL)
adumbratum, Plagiostomoceras adumbratum Zhuravleva, 2006 † (FOSSIL)
aichae, Hemicosmorthoceras aichae Kröger, 2008 † (FOSSIL)
angustum, Plagiostomoceras angustum (Holzapfel, 1885) † (FOSSIL)
beatum, Sphaerorthoceras beatum Ristedt, 1968 † (FOSSIL)
bifrons, Plagiostomoceras bifrons (Barrande, 1866) † (FOSSIL)
cardiolae, Plagiostomoceras cardiolae (Gurich, 1896) † (FOSSIL)
culter, Plagiostomoceras culter (Barrande, 1866) † (FOSSIL)
devingtalae, Plagiostomoceras devingtalae Zhuravleva, 1978 † (FOSSIL)
dimidiatum, Hemicosmorthoceras dimidiatum (Sowerby, 1839) † (FOSSIL)
fragile, Plagiostomoceras fragile Kroeger, 2004 † (FOSSIL)
gregalis, Akrosphaerorthoceras gregalis Ristedt, 1968 † (FOSSIL)
gruenwaldti, Plagiostomoceras gruenwaldti (Barrande, 1866) † (FOSSIL)
hassichebbiense, Plagiostomoceras hassichebbiense Klug, Kroeger & al., 2008 † (FOSSIL)
kuzmini, Plagiostomoceras kuzmini Zhuravleva, 2006 † (FOSSIL)
lategruenwaldti, Plagiostomoceras lategruenwaldti Kröger, 2008 † (FOSSIL)
laterculum, Hemicosmorthoceras laterculum Ristedt, 1968 † (FOSSIL)
lenticulare, Tienoceras lenticulare Zhao, 1954 † (FOSSIL)
placidum, Plagiostomoceras placidum (Barrande, 1868) † (FOSSIL)
pleurotomum, Plagiostomoceras pleurotomum (Barrande, 1866) † (FOSSIL)
reticulatum, Plagiostomoceras reticulatum Kröger, 2008 † (FOSSIL)
semiannulatum, Hemicosmorthoceras semiannulatum (Barrande, , 1870) † (FOSSIL)
semimbricatum, Hemicosmorthoceras semimbricatum Gnoli, 1982 † (FOSSIL)
vinogradovi, Plagiostomoceras vinogradovi Zhuravleva, 2006 † (FOSSIL)
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