†family Blechnaceae Copeland (ferns)

Pteridopsida - Polypodiales - Blechnaceae

Parent taxon: Polypodiales according to N. A. Jud 2011

See also Mabberley 2000 and McIver and Basinger 1993

Sister taxa: Aspidium, Aspleniaceae, Davallia, Dennstaedtiaceae, Drynaria, Dryopteridaceae, Histiopteris, Nephrolepis, Polypodiisporites, Pteridaceae, Pteridium, Pyrrosia, Stramineopteris, Solenostelopteris, Gleichenites, Tigrisporites, Pterisorus, Acrostichopteris

Subtaxa: Blechnum Midlandia Stenochlaena Woodwardia

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Distribution:

• Quaternary of Argentina (2 collections), Australia (6)

• Miocene to Pliocene of Japan (1)

• Miocene of Venezuela (1)

• Oligocene to Miocene of Australia (1)

• Oligocene of Argentina (2), Australia (1)

• Eocene of Argentina (1), United States (14: North Dakota, Wyoming)

• Paleocene of Canada (6: Alberta, Saskatchewan), Colombia (4), United States (24: Colorado, Montana, North Dakota, Wyoming)

• Tertiary of Venezuela (1)

• Cretaceous of Antarctica (1), Canada (2: Alberta), United States (11: Colorado, Montana, New Mexico, Wyoming)

• Jurassic to Cretaceous of the Russian Federation (1)

Total: 79 collections each including a single occurrence

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