Cordaites fossils may be found in rocks that were deposited during both the Carboniferous and Permian Periods as impressions, compressions, casts and molds.
Artisia sp.OPC 3024-1493; Cordaites (Seed Plant); Middle Pennsylvanian (Desmoinesian); Skiatook Group, Seminole Formation; Tulsa County, Oklahoma; CC BY-NC-ND 4.0
Artisia sp.
Artisia sp.OPC 3024-14009; Cordaites (Seed Plant); Middle Pennsylvanian (Desmoinesian); Skiatook Group, Seminole Formation; Tulsa County, Oklahoma; CC BY-NC-ND 4.0
Artisia sp.
Cordaitanthus sp.OPC 3074-6522 (OPC 1559-6522)); Cordaites (Seed Plant); Middle Pennsylvanian (Desmoinesian); Krebs Group, Boggy Formation, Secor Coal; McIntosh County, Oklahoma; CC BY-NC-ND 4.0
Cordaitanthus sp.
Cardiocarpus sp.OPC 3011-14041; Cordaites (Seed Plant); Middle Pennsylvanian (Desmoinesian); Cabaniss Group, Senora Formation, Henryetta Coal roof shale; Okmulgee County, Oklahoma; CC BY-NC-ND 4.0
