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what era did the gnetophyta evolve.
The living Gnetophyta comprise three genera: * Gnetum * Welwitschia * Ephedra
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Division of coniferophyts, Division of Cycadophyta, Division of ginksophyta, division of gnetophyta
Anthocerotophyta, Bryophyta, Marchantiophyta. Lycopodiophyta, Pteridophyta, Pteridospermatophyta, Pinophyta, Cycadophyta, Ginkgophyta, Gnetophyta and Anthophyta.