Mazon Creek Bivalve Fossil - Mazonmya mazonesis 2.63" carcharodontosaurus the building has served as

the building has served as the legislative heart of the country

Cyrus West Field was one of eight children

000 scientists from more than 100 countries

Paleontologist

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

Mazon Creek Bivalve Fossil - Mazonmya mazonesis 2.63" carcharodontosaurus the building has served as300,000,000 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.