Full reference: X.-X. Li and Z.-Q. Yang. 1983. Fructifications of Gigantopterids from South China. Palaeontographica Abteilung B 185:11-26
Parent taxon: Embryophyta according to E. Taylor et al. 2008
Sister taxa: Acylomurus, Antherocerotophyta, Anthocerotophyta, Concavissimisporites, Coniferophyta, Cycadophyta, Divisisporites, Ginkgophyta, Hermanophytales, Iraniales, Lusatisporis, Lycophyta, Progymnospermophyta, Pteridospermophyta, Sphenophyta, Zosterophyllophyta
Subtaxa: Bicoemplectopteridium Bicoemplectopteris Delnortea Emplectopteridaceae Gigantonoclea Gigantopteridaceae Tricoemplectopteris Zeilleropteris
Ecology: stationary C3 autotroph
Distribution:
• Triassic of China (1 collection)
• Permian of China (66), Indonesia (1), Japan (1), Malaysia (2), Mexico (1), North Korea (4), Oman (1), Papua New Guinea (1), the Russian Federation (1), Saudi Arabia (2), South Korea (3), Thailand (2), Turkey (2), United States (14: Michigan, Oklahoma, Texas)
• Carboniferous of Canada (1: Nova Scotia), United States (6: Illinois, Michigan, Ohio)
Total: 109 collections including 175 occurrences