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Class: CEPHALOPODA
--- Taxon Tree: NAUTILOIDEA [Subclass]-ELLESMEROCERIDA [Order]
------ Family: RIOCERATIDAE Kröger & Evans, 2011 † (Sea) (FOSSIL)
DB counters=14, Genus=2, Subgenus=0, Species=11, Subspecies=0, Synonyms=0, Images=0
DB counters include Fossil taxa: Species=11, Subspecies=0
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constrictum, Felinoceras constrictum Kröger & Evans, 2011 † (FOSSIL)
consuetum, Rioceras consuetum (Sardeson, 1896) † (FOSSIL)
dartoni, Rioceras dartoni Flower, 1964 † (FOSSIL)
depressum, Rioceras depressum Flower, 1964 † (FOSSIL)
escandei, Rioceras escandei (Thoral, 1935) † (FOSSIL)
expansum, Rioceras expansum Flower, 1964 † (FOSSIL)
fusiforme, Rioceras fusiforme Flower, 1964 † (FOSSIL)
lobatum, Rioceras lobatum Flower, 1964 † (FOSSIL)
nondescriptum, Rioceras nondescriptum Flower, 1964 † (FOSSIL)
tubulare, Rioceras tubulare Flower, 1964 † (FOSSIL)
wellsi, Rioceras wellsi Flower, 1964 † (FOSSIL)
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