†family Aspleniaceae Newman (fern)
Polypodiopsida - Polypodiales - Polypodiidae
Parent taxon: Aspleniineae according to PPG. I 2016
See also Jud 2011 and Mabberley 2000
Sister taxa: Onocleaceae, Thelypteridaceae
Subtaxa: Asplenium
Distribution:
• Quaternary of Australia (8 collections), India (6)
• Miocene to Pliocene of Japan (1)
• Eocene to Miocene of Argentina (1)
• Eocene of United States (8: Colorado, North Dakota, Washington, Wyoming)
• Cretaceous of Argentina (1), the Russian Federation (12), United States (12: Kansas, Montana, New Mexico, South Dakota, Wyoming)
• Jurassic of China (4), the United Kingdom (2)
• Triassic of Tajikistan (1)
Total: 56 collections including 59 occurrences