In addition to the counties listed above, a number of others have
produced plant fossils. For example, there are records of plant fossils
found southeast of Franklin in Morgan County, at Neelys in Peoria
County, and at a number of places in the southern and western parts of
Rock Island County. Local exploration is certain to turn up numerous
other collecting places at present unknown.
[Illustration: uncaptioned]
[Illustration: _Plate 5_]
_Codonotheca_ ⅗×
_Calamostachys_ 1×
_Pachytesta_ ⅗×
_Codonospermum_ ⅗×
_Cordaicorpus_ ⅗×
_Samaropsis_ ½×
_Whittleseya_ 1×
_Trigonocorpus_ ¼×
_Holcospermum_ ⅗×
_Neuropterocarpus_ ⅗×
_Lepidostrobus_ ⅗×
_Carpolithes_ ⅗×