24 



PLATE 3 



Figure 



1 Caulopteris/Psaronius sp., PP 11797, 

 scale 1:1, Francis Creek Shale, near 

 Braidwood, Will County, Illinois. 



Caulopteris wortheni , ISM 1747, 

 scale 1:1, holotype, probably Bond 

 or Mat toon Formation, near Carmi, 

 White County, Illinois. 



