Subfamily Blechnoideae Gasper et al. 2016 (fern)

Polypodiopsida - Blechnaceae

Parent taxon: Blechnaceae according to PPG. I 2016

Sister taxa: Leptolepidites, Midlandia, Peromonolites, Stenochlaenoideae, Woodwardioideae

Subtaxa: Blechnum

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Distribution:

• Quaternary of Argentina (2 collections), India (2)

• Miocene of Venezuela (1)

• Oligocene to Miocene of Australia (1)

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

• Eocene of Argentina (1)

• Tertiary of Venezuela (1)

• Paleocene of United States (4: Colorado, Wyoming)

• Cretaceous to Paleogene of United States (1: Colorado)

• Cretaceous of Antarctica (1), Canada (1: Alberta)

• Jurassic to Cretaceous of the Russian Federation (1)

Total: 19 collections each including a single occurrence

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