Polypodiopsida - Equisetales - Equisetidae
Proposed for conservation against its disused taxonomic synonym, Oncylogonatum Koenig (1827), by Doweld (in Taxon 62: 837. 2013).
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Parent taxon: Equisetaceae according to Taylor and Taylor 1993
See also Chandra and Tewari 1991, Jain and Delevoryas 1967 and Lakhanpal et al. 1976
Sister taxa: Equicalastrobus, Equisetum, Schizoneura
Subtaxa: Equisetites conicus Equisetites keuperina Equisetites mougeoti Equisetites pusillus
Distribution:
• Cretaceous of Argentina (4 collections), Belgium (1), Canada (2: Alberta, British Columbia), China (1), India (1), Japan (1), Kazakhstan (2), the Russian Federation (3), Svalbard and Jan Mayen (2), the United Kingdom (3), United States (19: Alaska, Wyoming)
• Jurassic to Cretaceous of Antarctica (1), Argentina (1), Canada (1: British Columbia), Malaysia (1), Peru (2), the Russian Federation (7)
• Jurassic of Afghanistan (1), Argentina (11), Australia (1), Belarus (4), Chile (1), China (98), Georgia (9), Germany (1), Greenland (5), India (4), Iran (3), Israel (2), Italy (2), Japan (5), Kazakhstan (15), Madagascar (1), Mongolia (6), New Zealand (3), Poland (1), Portugal (2), Romania (9), the Russian Federation (160), South Africa (1), South Korea (1), Sweden (1), Tajikistan (16), Turkmenistan (1), Ukraine (3), the United Kingdom (6), Uzbekistan (5)
• Triassic to Jurassic of Canada (1: Northwest Territories), Georgia (1), Kazakhstan (1), Mexico (1), Sweden (1), the United Kingdom (1)
• Triassic of Afghanistan (1), Argentina (3), Australia (1), Austria (1), Chile (1), China (66), France (2), Germany (14), Greenland (13), Hungary (3), Iran (4), Italy (9), Japan (3), Kazakhstan (1), Kyrgyzstan (1), Malaysia (1), Mongolia (2), the Russian Federation (16), Serbia and Montenegro (1), Spain (2), Svalbard and Jan Mayen (2), Sweden (2), Switzerland (1), Tajikistan (3), Thailand (1), Ukraine (2), the United Kingdom (2), United States (7: Arizona, New Mexico, Utah, Virginia)
• Permian of Antarctica (1), China (3), Mongolia (1), the Russian Federation (1), Tanzania (1), United States (1: Oklahoma)
• Carboniferous of Canada (1: Nova Scotia)
Total: 610 collections including 887 occurrences
Specimen images are retrieved through the ePANDDA API.
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