Equisetum Linnaeus

Sphenopsida - Equisetales - Equisetaceae

Parent taxon: Equisetaceae according to D.J. Mabberley 2000

See also Christophel 1976, Knowlton 1899, Lapasha and Miller 1985, McIver and Basinger 1993 and Upchurch et al. 1994

Sister taxon: Equisetites

Subtaxa: Equisetum cascadensis Equisetum columnare Equisetum columnaroides Equisetum lyellii Equisetum magnum Equisetum mokhotlongensis Equisetum montanensis

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Distribution:

• Quaternary of the Congo-Kinshasa (1 collection), United States (2: California, Washington)

• Pliocene of United States (1: Idaho)

• Miocene to Oligocene of United States (1: Montana)

• Miocene of Canada (1: Northwest Territories), Ecuador (2), Poland (1), Switzerland (1), United States (6: California, Idaho, Nebraska, Nevada)

• Oligocene to Eocene of United States (1: Oregon)

• Oligocene of United States (3: Montana, Oregon)

• Eocene of United States (44: Colorado, Idaho, North Dakota, Washington, Wyoming)

• Paleocene of Canada (1: Alberta), the United Kingdom (1), United States (38: Colorado, Montana, North Dakota, Wyoming)

• Cretaceous of Canada (7: Alberta, British Columbia, Saskatchewan), United States (21: Montana, North Dakota, Utah, Virginia, Wyoming)

• Jurassic to Cretaceous of India (1)

• Jurassic of Antarctica (2), Australia (3), China (1), Egypt (1), France (3), Georgia (4), India (1), Japan (1), Kazakhstan (2), Mexico (6), Poland (1), Portugal (1), the Russian Federation (11), Serbia and Montenegro (1), Tajikistan (3), the United Kingdom (39), United States (6: Colorado, Montana, Utah, Wyoming), Uzbekistan (1)

• Triassic to Jurassic of Australia (1), Honduras (1)

• Triassic of Austria (1), China (3), France (5), Germany (7), Lesotho (2), South Africa (31), Ukraine (1), United States (1: North Carolina)

• Wolfcamp of Mexico (1)

• Permian of Antarctica (1), South Africa (1)

• Mississippian of United States (1: Kentucky)

Total: 277 collections including 317 occurrences

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Specimen images are retrieved through the ePANDDA API.


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