Herrin Fossil Flora
Cordaitales - Ancestral Conifers
Leaf Scars
Cordaicladus sp.
Cordaicladus sp., (Page 8, Fig. 2. Herrin Roof Shale Flora field guides, ESCONI/Wittry). - D.Carlson
Detail of above specimen with possible insect egg-laying scar. - D.Carlson
Above and below: Cordaicladus sp. - defoliated Cordaites branch showing spiraling leaf scars. - A.Young