Parent taxon: Sphenopsida according to Zavattieri 1990
Sister taxa: Archaeocalamites, Bengalia, Brukmannia, Carpannularia, Ceratophyllites, Endocalamites, Eupalaeostachya, Kallostachys, Lilpopiaceae, Lobatannularia, Paracalamites, Prynadaia, Sphenostrobus, Sphondylophyton
Subtaxa: Calamospora aplata Calamospora exila Calamospora mesozoica Calamospora multiplicata Calamospora rotata
Distribution:
• Cretaceous of Antarctica (1 collection), Argentina (1), the Bahamas (6)
• Jurassic of France (2), Serbia and Montenegro (1)
• Triassic of Antarctica (2), Hungary (2), India (3), Norway (18)
• Rotliegendes of Norway (9)
• Permian to Triassic of Germany (1)
• Permian of Antarctica (1), Canada (2: Nunavut), the Czech Republic (1), Germany (1), Hungary (3), India (5), Norway (6), United States (2: Oklahoma)
• Namurian of United States (1: Indiana)
• Carboniferous of Argentina (1), Canada (2: Northwest Territories, Nunavut), Peru (1), United States (108: Illinois, Indiana, Kansas, Kentucky, Missouri, New Mexico, Ohio, Oklahoma)
• Givetian of the United Kingdom (3)
• Devonian of Australia (8), Canada (3: Nunavut, Quebec), Germany (1), the United Kingdom (21), United States (1: Maryland)
• Silurian of Norway (1)
Total: 218 collections including 370 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.