Voltziopsida - Voltziales - Voltziaceae
Parent taxon: Voltziales according to A. B. Doweld 2001
See also Meyen 1984 and Retallack 1981
Sister taxa: Bartheliaceae, Emporiaceae, Moyliostrobus, Pseudovoltzia, Rotundolepis, Thucydiaceae, Ullmanniaceae, Utrechtiaceae
Subtaxa: Telemachus Voltzia Willsiostrobus
Ecology: "photoautotroph"
Distribution:
• Triassic of Argentina (1 collection), Austria (1), Chile (1), China (6), France (3), Germany (18), Hungary (1), Iran (1), Italy (19), Kyrgyzstan (1), New Zealand (1), the Russian Federation (1), Serbia (1), South Africa (18), Spain (1), Switzerland (2), Ukraine (1), the United Kingdom (2), United States (2: North Carolina)
• Permian of Brazil (3), China (1), Hungary (1), India (2), Kenya (1), Madagascar (4), Peru (1), the Russian Federation (2), United States (3: Arizona, Colorado, Kansas)
• Carboniferous of United States (1: Arizona)
Total: 100 collections including 135 occurrences