Pteridopsida - Ophioglossales - Ophioglossidae
Full reference: I. Martinov. 1820. Техно-ботаническій словарь : на латинском и россійском языках.
Parent taxon: Ophioglossales according to F. H. Knowlton 1919
See also Link 1833 and Mabberley 2000
Sister taxa: none
Subtaxa: Botrychioideae Lycopodiacidites Mankyuoideae Ophioglossoideae
Distribution:
• Quaternary of Australia (1 collection), India (1), United States (2: North Carolina, Washington)
• Pliocene of United States (1: Massachusetts)
• Miocene of Canada (1: Northwest Territories)
• Oligocene to Miocene of Argentina (1), Australia (1)
• Paleocene of Antarctica (1), Canada (1: Alberta)
• Cretaceous of the Bahamas (4), India (1), United States (1: New Jersey)
• Jurassic of France (1), India (3), the United Kingdom (1)
• Triassic of Italy (1), Norway (1)
Total: 23 collections including 26 occurrences