Nilsonia Brongniart 1825 (cycads)

Cycadopsida - Cycadales

Alternative spelling: Nilssonia

Parent taxon: Cycadales according to S. V. Meyen 1984

See also Peppe et al. 2007

Sister taxa: Apoldia, Aricycas, Beaniaceae, Bucklandia, Cavamonocolpites, Crossozamiaceae, Cycadaceae, Dirhopalostachyaceae, Eucommiidites, Mesosingeria, Nilsoniaceae, Zamiaceae

Subtaxa: none

Distribution:

• Cretaceous of Argentina (1 collection), Canada (20: Alberta, British Columbia), Ecuador (2), India (1), Japan (2), Puerto Rico (1), the Russian Federation (11), South Africa (1), United States (13: Alaska, British Columbia, North Dakota, Wyoming)

• Jurassic to Cretaceous of Antarctica (1), Canada (2: British Columbia, Yukon), the Russian Federation (4)

• Jurassic of Afghanistan (4), Australia (2), Azerbaijan (1), Belarus (4), Chile (1), China (82), Georgia (7), Hong Kong (1), India (2), Iran (4), Japan (8), Kazakhstan (9), Kyrgyzstan (1), Lithuania (1), Mexico (2), New Zealand (4), Norway (1), Poland (3), Portugal (1), Romania (32), the Russian Federation (112), South Korea (1), Sri Lanka (1), Tajikistan (20), Turkmenistan (1), Ukraine (5), the United Kingdom (45), United States (5: Alaska, Montana, Utah, Wyoming), Uzbekistan (9)

• Triassic to Jurassic of Sweden (1)

• Triassic of Antarctica (1), Argentina (3), Armenia (1), Australia (2), Austria (1), China (50), Germany (3), Iran (2), Italy (2), Japan (2), Mongolia (1), the Russian Federation (4), South Africa (3), Sweden (3), Tajikistan (5), Thailand (1), Ukraine (3), United States (1: Utah)

• Permian of China (6)

Total: 523 collections including 984 occurrences

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