Family Welwitschiaceae Caruel 1879
Gnetopsida - Gnetales - Welwitschiaceae
Parent taxon: Gnetales according to D. L. Dilcher et al. 2005
See also Mabberley 2000 and Meyen 1984
Sister taxa: Alaticolpites, Cratonia, Drewria, Elaterocolpites, Elaterosporites, Gnetaceae, Palaeognetaleana, Siphonospermum, Steevesipollenites
Subtaxa: Welwitschia Welwitschiapites Welwitschiella Welwitschiophyllum Welwitschiostrobus
Distribution: