†family Karkeniaceae Krassilov 1972
Ginkgoopsida - Karkeniales - Karkeniaceae
Parent taxon: Karkeniales according to A. B. Doweld 2001
See also Meyen 1984, Retallack 1981 and Taylor et al. 2008
Sister taxon: Kiritchkovia
Subtaxa: Karkenia
Distribution:
• Jurassic of the Russian Federation (1 collection)
• Triassic of New Zealand (1)
Total: 2 collections each including a single occurrence