Class Gnetopsida Kirpotenko 1884

Gnetopsida

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

See also Mabberley 2000

Sister taxa: none

Subtaxa: Pityophyllum

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Distribution:

• Cretaceous of Canada (10: Alberta, British Columbia collections), China (1), the Russian Federation (11), United States (21: Alaska)

• Jurassic to Cretaceous of Canada (3: British Columbia, Yukon), the Russian Federation (6)

• Jurassic of Belarus (4), China (72), Georgia (9), Germany (1), India (1), Iran (1), Kazakhstan (26), Kyrgyzstan (2), Mongolia (7), Poland (2), the Russian Federation (147), Tajikistan (19), Turkmenistan (1), Ukraine (5), United States (1: Montana), Uzbekistan (10)

• Triassic to Jurassic of Georgia (2), Kazakhstan (1)

• Triassic of China (11), Japan (3), Kyrgyzstan (1), Mongolia (3), the Russian Federation (12), South Korea (2), Tajikistan (1), Ukraine (4)

Total: 400 collections including 538 occurrences

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