Subfamily Thelypteridoideae Reed 1963 (fern)

Polypodiopsida - Polypodiales - Polypodiidae

Parent taxon: Thelypteridaceae according to PPG. I 2016

Sister taxon: Phegopteridoideae

Subtaxa: Cyclosorus Thelypteris

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Distribution:

• Quaternary of Australia (10 collections), India (2)

• Miocene of Argentina (2)

• Eocene of China (1), Myanmar (5), United States (14: Wyoming)

Total: 34 collections each including a single occurrence

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