Mazon Creek Bivalve Fossil - Mazonmya mazonesis 2.63" carcharodontosaurus Every earring contains a complete

Every earring contains a complete geode

beginning with the largest extinction event in history and ending with the asteroid that killed off the dinosaurs

Paleontologist

Cyrus West Field was one of eight children

Mazon Creek Bivalve Fossil - Mazonmya mazonesis 2.63" carcharodontosaurus Every earring contains a complete300,000,000 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 2. 63", that was recovered from Mazon Creek in Illinois.