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Isoëtopsida (Class) ..Isoëtales (Order) ..†Lepidodendrales (Order) ..†Pleuromeiales (Order) ..†Protolepidodendrales (Order) ..Selaginellales (Order) ..[†Takhtajanodoxales] (Order) ....†Suavitaceae (Family) ....[†Takhtajanodoxaceae] (Family)

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Last updated: 28 Aug 2026