SubFamily: GIRTYOCERATINAE - Genus: Girtyoceras Wedekind , 1918 † (syn: Dryochoceras, Sagittoceras - DB: 24 SP, 7 IMG)
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SubFamily: GIRTYOCERATINAE - Genus: Hudsonoceras Moore , 1946 † (DB: 1 SP, 0 IMG)
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SubFamily: GIRTYOCERATINAE - Genus: Sulcogirtyoceras Ruzhencev , 1960 † (DB: 8 SP, 1 IMG)
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SubFamily: GIRTYOCERATINAE - Genus: Tumulites McCaleb & al., 1964 † (syn: Tumilites - DB: 2 SP, 0 IMG)
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SubFamily: GIRTYOCERATINAE - Genus: Winchelloceras Ruzhencev , 1965 † (DB: 3 SP, 0 IMG)
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