Herrin Fossil Flora
Pteridosperms - Seed Ferns
Seeds and Pollen Organs
Dolerotheca sp.
Dolerotheca sp., (Page 6, Fig. 2. Herrin Roof Shale Flora field guides, ESCONI/Wittry). - C.Puritz
Rhabdocarpus sp.
Rhabdocarpus sp., (Page 6, Fig. 1. Herrin Roof Shale Flora field guides, ESCONI/Wittry). - R.Russell
R.Russell
Rhabdocarpus sp. (bottom center). - B.Riegler
Trigonocarpus sp.
C.Davis
Trigonocarpus sp. - S.Drizner
Indeterminate Seeds
A.Young
K.Howard
K.Robitschek
B.Riegler (photo by B.Riegler)