Mazon Creek Bivalve Fossil - Mazonmya mazonesis SOLD 1.87" graptolite 70 million years ago

70 million years ago

radius and ulna

a crystal form of calcium carbonate

95" Cyclobatis fossil

and facilitated vast networks of trade

Mazon Creek Bivalve Fossil - Mazonmya mazonesis SOLD 1.87" graptolite 70 million years ago300,000,000 years ago, in the Carboniferous Period, Earth was a dense tropical jungle. Lush forests were home to all manner of prehistoric creatures and swampy landscapes covered the surface. We know of this incredible time thanks to the fossil imprints left behind by plants and animals that were preserved for millions of years. This specimen is a Mazonmya mazonesis bivalve fossil, measuring 1. 87", that was recovered from Mazon Creek in Illinois.