2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Coloborhynchus Otodus sharks remain larger than

Otodus sharks remain larger than any modern carnivorous fish

barite can form tufaceous mounds through the buildup of deposits from hot springs rich in barium

Their fossils have been recovered from Montana’s Judith River Formation and corresponding formations in Alberta

the remarkable flying reptiles of the extinct Pterosauria clade

2.4" Annularia Fossil Leaves Mazon Creek Nodule Pennsylvanian Age Split-Pair Coloborhynchus Otodus sharks remain larger thanLocation: Francis Creek Shale Formation, Illinois Weight: 6 Ounces Dimensions: 2. 9 Inches Long, 2. 3 Inches Wide, 0. 9 Inches Thick (Nodule) Leaf Dimensions: 2. 4 Inches Long, 2. 3 Inches Wide The item pictured is the one you will receive. Pensylvanian Age, 370 million years ago Annularia Fossil Leaves The Mazon Creek fossils date back to the Pennsylvanian sub period (roughly 307 million years ago). During this time, the area was a tropical delta