4.7" Alethopteris Fern Plant Leaf Fossil Carboniferous Age Llewellyn FM ST Clair, PA Goulmimichthys Time period: Eocene

Time period: Eocene

These Pleistocene giants possessed sophisticated cold-climate specializations: a dual-layered pelage featuring protective outer guard hairs and insulating underfur in variable coloration

Stratigraphic Implications: The occurrence of Strombus bubonius necessitates a reassessment of Tyrrhenian stratigraphy and helps correlate marine terraces across the region

Fundamentally composed of iron and magnesium-rich orthopyroxene

Borealosuchus exemplifies the extraordinary survival capacity of crocodilians

4.7" Alethopteris Fern Plant Leaf Fossil Carboniferous Age Llewellyn FM ST Clair, PA Goulmimichthys Time period: EoceneLocation: Llewellyn Formation, St Clair, Pennsylvania Weight: 5. 9 Ounces Dimensions: 4. 7 Inches Long, 4. 2 Inches Wide, 0. 4 Inches Thick (Plate) Comes with a Certificate of Authenticity. Comes with a Free Stand. The item pictured is the one you will receive. Pennsylvanian Age, 300 million years old. Alethopteris Sp Fern Fossil The Llewellyn Formation, dating back approximately 300 million years to the Pennsylvanian Period, is one of the rare sites