Parent taxon: Osmundaceae according to F. H. Knowlton 1919
See also Andrews 1970
Sister taxa: Anomorrhoea, Baculatisporites, Bathypteris, Chasmatopteris, Chinlea, Cladotheca, Claytosmunda, Iegosigopteris, Itopsidema, Mesolonchopteris, Millerocaulis, Osmunda, Osmundacaulis, Osmundasporites, Osmundites, Osmundopsis, Palaeosmunda, Petcheropteris, Phyllopteroides, Rotverrusporites, Rugulatisporites, Stellatheca, Thamnopteris, Todea, Todeopsis, Todisporangiaites, Todites, Zalesskya
Subtaxa: Acrostichites brevipennis Acrostichites coniopteroides Acrostichites densifolius Acrostichites fructifer Acrostichites linnaeaefolius Acrostichites microphyllus Acrostichites princeps Acrostichites tenuifolius Acrostichites williamsonis
Type: Pecopteris williamsonis
Distribution:
• Jurassic of Greenland (11 collections)
• Triassic of Greenland (4), United States (4: Virginia, Virginia/North Carolina)
• Permian of the Russian Federation (1)
Total: 20 collections including 22 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.