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Class: CEPHALOPODA
--- Taxon Tree: AMMONOIDEA [Subclass]-TURRILITINA [Order]-PTYCHOCERATOIDEA [Superfamily]
------ Family: MEGACRIOCERATIDAE Vermeulen, 2006 † (Sea) (FOSSIL)
DB counters=19, Genus=2, Subgenus=0, Species=15, Subspecies=1, Synonyms=0, Images=1
DB counters include Fossil taxa: Species=15, Subspecies=1
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anglicum, Shasticrioceras anglicum Doyle, 1963 † (FOSSIL)
astierianum, Megacrioceras astierianum (D'Orbigny, 1850) † (FOSSIL)
bifurcatum, Shasticrioceras bifurcatum Dimitrova, 1967 † (FOSSIL)
doublieri, Megacrioceras doublieri (Jaubert, 1856) † (FOSSIL)
hesperum, Shasticrioceras hesperum Anderson, 1938 † (FOSSIL)
inflatum, Shasticrioceras inflatum Anderson, 1938 † (FOSSIL)
intermedium, Shasticrioceras intermedium Matsukawa & Obata, 1993 † (FOSSIL)
multicostatum, Megacrioceras seringei multicostatum Sarkar (FOSSIL)
nipponicum, Shasticrioceras nipponicum Matsumoto, 1947 † (FOSSIL)
patricki, Shasticrioceras patricki Murphy, 1975 † (FOSSIL)
picteti, Megacrioceras picteti (Ooster, 1860) † (FOSSIL)
pictetiforme, Megacrioceras pictetiforme (Busnardo, 2003) † (FOSSIL)
poniente, Shasticrioceras poniente Anderson, 1938 † (FOSSIL)
roddai, Shasticrioceras roddai Murphy, 1975 † (FOSSIL)
seringei, Megacrioceras seringei (Astier, 1851) † (FOSSIL)
seringei multicostatum, Megacrioceras seringei multicostatum (Sarkar, 1955) † (FOSSIL)
whitneyi, Shasticrioceras whitneyi Anderson, 1938 † (FOSSIL)
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