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Alethopteris sullivantii (Lesquereux)

Alethopteris sullivantii (Lesquereux)
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Alethopteris sullivantii (Lesquereux)
Alethopteris sullivantii (Lesquereux)

Products description

This  is a  plant fossil concretion with a tree fern of the spcies Alethopteris sullivantii  from Mazon Creek.

Location:

Mazon Creek, Braidwood, Illinois , USA
Size of concretion :about 71 x 58 mm
Age:Upper Carboniferous, Pennsylvanian , Carbondale Fm. (about 300 Ma)

Product no.: 8674