Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]-DIAPHANOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]-HAMINOEOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]-PHILINOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]-RUNCINOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-GYMNOSOMATA [Order]-CLIONOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-GYMNOSOMATA [Order]-HYDROMYLOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-NUDIBRANCHIA [Order]-AEOLIDIOIDEA [Superfamily]
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Class: GASTROPODA Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-NUDIBRANCHIA [Order]-ARMINOIDEA [Superfamily]
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