Fern Fossil From Mazon Creek - Part & Counterpart

This is a Pecopteris fern fossil from Mazon Creek in Illinois. It's Pennsylvanian in age, or approximately 300 million years old and preserved in an ironstone nodule. The specimen includes both the part and counterpart and is well preserved.
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DETAILS
SPECIES
Pecopteris sp.
LOCATION
Mazon Creek, Illinois
FORMATION
Francis Creek Shale, Carbondale Formation
SIZE
2 1/4 inch long
ITEM
#3024
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