Family Dennstaedtiaceae Lotsy 1909 (fern)

Polypodiopsida - Polypodiales - Polypodiidae

Parent taxon: Dennstaedtiineae according to PPG. I 2016

See also Jud 2011, Mabberley 2000 and McIver and Basinger 1993

Sister taxa: none

Subtaxa: Dennastra Dennstaedtia Histiopteris Hypolepis Microlepia Microlepiopsis Pteridium

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Distribution:

• Quaternary of Australia (33 collections), the Congo-Kinshasa (1), India (11), United States (2: Michigan)

• Miocene of Switzerland (3), United States (1: Nevada)

• Eocene to Oligocene of Antarctica (1)

• Eocene of United States (3: Idaho, Washington)

• Paleocene of Canada (3: Saskatchewan), United States (8: Colorado, North Dakota, Wyoming)

• Cretaceous of Canada (3: Alberta), United States (6: Idaho, Wyoming)

• Jurassic of India (1)

Total: 76 collections including 90 occurrences

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