Manuscript entitled, Fossil Flora and Fauna of the Pennsylvanian Period, Will County, Illinois
by George Langford (1876-1964)
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Dactylotheca plumosa, Asterotheca daubrei, A. candolleana, and Pecopteris mazoniana, page 55.
Note: the scan of the original page 55 is here.
The original page was letter size but the image may have been cropped slightly. 
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The 1st, 3rd & 4th fossils from left to right are in the Mazon Creek Collection of the Illinois State Museum.
Dactylotheca plumosa, sterile and fertile.
(No. 15296)
 Asterotheca daubrei.
 Pecopteris mazoniana.
(No. 15397)
 Asterotheca candolleana.
(No. 15141)
Dactylotheca plumosa, sterile and fertile, GL photograph and sketches, page 55
 Asterotheca daubrei, GL photograph and sketch, page 55
 Pecopteris mazoniana, GL photograph and sketches, page 55
 Asterotheca candolleana, GL photograph and sketch, page 55
.