ecofactbook
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species
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Plantae
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Tracheophyta
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Gnetopsida
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Bennetticarpus
Bennettites
Cycadeoidea
Czekanowskia
Dictyozamites
Elatocladus
Nilssoniopteris
Otozamites
Palaeanthus
Pterophyllum
Sphenolepis
Williamsonia
Williamsoniella
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