Parent taxon: Bennettitales according to E. W. Berry 1922
See also Andrews 1970, Knowlton 1919 and Lakhanpal et al. 1976
Sister taxa: Amarjolia, Anomozamites, Bennetticarpus, Bennettistemon, Bennettitaceae, Bennettitaepollenites, Bennettiteaepollenites, Bennettitolepis, Bysmatospermum, Coreanophyllum, Cycadolepis, Dictyozamites, Guptioxylon, Leguminanthus, Lerouxia, Moltenia, Monanthesia, Nilssoniopteris, Ontheanthus, Ontheostrobus, Otozamites, Palaeanthus, Piroconites, Pseudocycas, Pterophyllum, Ptilophyllum, Purioxylon, Rajmahalia, Sahnioxylon, Sturiella, Tyrmia, Tysonia, Vardekloeftia, Weltrichia, Wielandiella, Williamsonia, Williamsoniaceae, Williamsonianthus, Williamsoniella, Wonnacottia, Zamites
Subtaxa: Cycadeospermum acutum Cycadeospermum angustum Cycadeospermum californicum Cycadeospermum columnare Cycadeospermum hettangense Cycadeospermum indicum Cycadeospermum lineatum Cycadeospermum marylandicum Cycadeospermum montanense Cycadeospermum obovatum Cycadeospermum oregonense Cycadeospermum ovatum Cycadeospermum rotundatum Cycadeospermum spatulatum Cycadeospermum wanneri
Type: Cycadeospermum hettangense
Distribution:
• Paleocene of Belgium (3 collections), the Netherlands (6)
• Cretaceous of Belgium (1), the Netherlands (1), United States (5: Kansas, Oregon, Wyoming)
• Jurassic of France (2), India (1)
Total: 19 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.