Parent taxon: Pteridospermophyta according to H. N. Andrews 1970
Sister taxa: Albertlongia, Angaropteris, Bardia, Bilignea, Boulaya, Brongniartites, Buteoxylonales, Calathiops, Calathospermum, Calymmatotheca, Camptosperma, Canipa, Cephalopteris, Chapelia, Codonotheca, Coseleya, Crossotheca, Dictyoxylon, Dimeripteris, Diplotheca, Diplothmema, Dolichosperma, Eccroutosperma, Eltovaria, Emplectopteris, Eurystoma, Geminitheca, Genomosperma, Gimmia, Girtya, Glossophyllaceae, Gnetopsis, Goldenbergia, Halletheca, Heterangium, Heterotheca, Hoegia, Hydrasperma, Hymenotheca, Ilfeldia, Jongmansis, Kegelidium, Kurtziana, Lacoea, Lagenospermum, Lagenostoma, Lithangium, Lyginorachis, Megaloxylon, Microspermopteris, Nudospermum, Nystroemia, Ootheca, Paracalathiops, Paragonorrachis, Perezlaria, Periastron, Physostoma, Potoniea, Pteridozamites, Rhetinangium, Rhetinotheca, Rotodontiospermum, Runcaria, Salpingostoma, Schopfiastrum, Schopfitheca, Simplotheca, Spermolithus, Spermopteris, Sphaerostoma, Sphenoxylon, Stamnostoma, Staphylotheca, Stenokoleos, Syncrama, Tantallosperma, Telangium, Tetrastichia, Tristichia, Tyliosperma, Unguitheca, Utkalia, Whittleseya, Yakia, Zimmermannitheca
Subtaxa: Aulacotheca elongata
Type: Aulacotheca elongata
Distribution:
• Pennsylvanian of United States (2: Illinois, Michigan collections)
• Carboniferous of United States (2: Indiana, Oklahoma)
• Mississippian of United States (2: Utah, West Virginia)
Total: 6 collections including 7 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.