Polypodiopsida - Equisetales - Equisetidae
Parent taxon: Calamitaceae according to H. N. Andrews 1970
Sister taxa: Arthrodendron, Arthropityostachys, Arthropitys, Asterophyllites, Asterophyllostachys, Asthenomyelon, Calamitea, Calamites, Calamitina, Calamitomyelon, Calamocarpon, Calamocladus, Calamodendrea, Calamodendrofloyos, Calamodendron, Calamodendrophyllum, Calamodendroxylon, Calamophloios, Calamostachys, Coleophyllites, Haplocalamus, Metacalamostachys, Myelocalamites, Nematophyllites, Neocalamites, Pinnularia, Pseudobornia, Zimmermannioxylon
Subtaxa: Protocalamites scrobiculatus
Distribution:
• Carboniferous of the United Kingdom (2 collections)
• Devonian of United States (2: Indiana)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.