Ctenopteris
Ptilozamites
Eukaryota | Plantae | Pteridobiotina | Tracheophyta | Ptilozamites
COL:CS5HF | COL:P | COL:CMQ8S | COL:TP | COL:SM9DW
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Britton & Brown |  | A.G. Nathorst, 1878