Family Cycadaceae Persoon 1807 (cycads)

Cycadopsida - Cycadales - Cycadaceae

Parent taxon: Cycadales according to A. B. Doweld 2001

See also Christenhusz et al. 2011, Knowlton 1919, Mabberley 2000, MacGinitie 1941 and Meyen 1984

Sister taxa: Amuriella, Anthrophyopsis, Apoldia, Archaeocycas, Aricycas, Beaniaceae, Behuninia, Bucklandia, Bureja, Cavamonocolpites, Crossozamiaceae, Ctenozamites, Cycadenia, Cycadinorachis, Dirhopalostachyaceae, Eucommiidites, Fascisvarioxylon, Gymnovulites, Haitingeria, Heilungia, Mesosingeria, Michelilloa, Nikania, Nilsonia, Nilssoniaceae, Palaeozamia, Paracycas, Phasmatocycas, Pleiotrichium, Sarmatiella, Stangerites, Sueria, Taeniopteris, Zamiaceae

Subtaxa: Beaniopsis Ctenophyllum Ctenopsis Cycadinocarpus Cycadites Cycadospadix Cycas Dichotozamites Dioonites Encephalartopsis Encephalartos Glossozamites Leprospermum Leptocycas Menucoa Microzamia Platypterygium Sphenozamites Zamiopsis Zamiostrobus

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Type: Cycas

Distribution:

• Quaternary of the Bahamas (1 collection)

• Pliocene to Pleistocene of the Congo-Kinshasa (1)

• Miocene of China (1)

• Eocene of China (1), Japan (1), United States (1: Wyoming)

• Clarkforkian of United States (1: Wyoming)

• Paleogene of Argentina (1)

• Cretaceous of Ecuador (2), Greenland (7), India (1), Spain (1), United States (3: South Dakota, Virginia)

• Jurassic to Cretaceous of India (1)

• Jurassic of France (3), India (5), Italy (1), Kazakhstan (3), Mexico (1), the Russian Federation (3), Tajikistan (1), the United Kingdom (3), United States (2: Alaska, Wyoming)

• Triassic of Austria (1), China (10), Germany (2), Italy (3), Mexico (10), Poland (1), the Russian Federation (4), Ukraine (1), United States (9: North Carolina, Virginia, Virginia/North Carolina)

• Permian of China (1), India (2), South Korea (1), United States (2: Kansas, Texas)

Total: 92 collections including 104 occurrences

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