†family Archaeocalamitaceae (fern)
Polypodiopsida - Equisetales - Equisetidae
Parent taxon: Equisetales according to N. R. Cúneo and I. Escapa 2006
Sister taxa: Angaroradix, Annularia, Annulariopsis, Annulina, Barakaria, Borisiella, Calamitaceae, Corynophyllites, Equisetaceae, Equisetophyton, Manchurostachys, Neokoretrophyllites, Notocalamites, Oncylogonatum, Phyllostachya, Phyllothecaceae, Protannularia, Protocalamostachys, Pseudoannularia, Pseudoasterophyllites, Pseudolobatannularia, Raniganjia, Schizoneuropsis
Subtaxa: Pothocites
Ecology: "photoautotroph"
Distribution:
• Carboniferous of France (1 collection), the United Kingdom (2)
Total: 3 collections each including a single occurrence