2 Free Images of Llewellyn Formation

cc-zeropennsylvanian fossils from pennsylvania
Alethopteris serli and Neuropteris sp., Carboniferous (Pennsylvanian), Llewellyn Formation, St. Clair, Schuykill County, Pennsylvania, USA - Houston Museum of Natural Science - DSC01757
alethopteris serlicc-zero
17_22_015_ferns
self-published workanimals
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