Sigillariaceae - Sigillariaceae
Parent taxon: Lycophyta according to E. Taylor et al. 2008
See also Dilcher et al. 2005 and Jennings 1980
Sister taxa: Acanthotriletes, Annalepis, Bacutriletes, Carinostrobus, Drepanophycales, Erlansonisporites, Ferganodendron, Guycampbellia, Horstisporites, Hughesisporites, Lepidocarpaceae, Lepidodendrales, Pleuromeiales, Pleuromeiopsis, Protolepidodendrales, Protolepidodendron, Pseudolepidodendropsis, Wexfordia
Subtaxa: Calamosyrinx Clathraria Dictyoxylon Euphorbites Mazocarpon Mesosigillaria Presigillaria Pseudosyringodendron Rhytidolepis Sigillaria Sigillarioides Sigillariophyllum Sigillariopsis Stemmatopteris Syringodendron
Distribution:
• Cretaceous of the United Kingdom (2 collections)
• Permian of China (1), Iraq (1), North Korea (2), Oman (1), South Korea (1), Spain (1), Tanzania (1), United States (7: Colorado, Oklahoma, Texas), Zimbabwe (1)
• Namurian of Spain (1)
• Carboniferous of Canada (7: New Brunswick, Nova Scotia), France (1), Germany (2), the Netherlands (1), Spain (2), Ukraine (3), the United Kingdom (8), United States (43: Alabama, Colorado, Georgia, Illinois, Indiana, Kansas, Michigan, Missouri, New Mexico, Ohio, Utah, West Virginia)
• Devonian of United States (4: New York, Pennsylvania)
Total: 90 collections including 155 occurrences