Order Dioales Doweld 2001 (cycads)

Cycadopsida - Dioales

Full reference: A. B. Doweld. 2001. Prosyllabus Tracheophytorum. Tentamen Systematis Plantarum Vascularium.

Parent taxon: Cycadopsida according to A. B. Doweld 2001

Sister taxa: Boweniaceae, Crassofilicites, Cycadales, Deltolepis, Drepanozamites, Gnetales, Lagenostomales, Manebachia, Marantoidea, Orthogoniopteris, Pteridospermales, Stangeriaceae, Strangerites, Trigonocarpales, Welwitschiales

Subtaxa: Dioaceae

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Distribution:

• Eocene of United States (2: Alaska, Oregon collections)

Total: 2 collections each including a single occurrence

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