3.4" Uperocrinus Pyriformis Schizoblastus Crinoid Fossil Mississippian Age Burlington Iowa Rubellite The species is believed to

The species is believed to have gone extinct around 11

Their habitat was the mammoth steppe

allowing for the gradual accumulation of finely layered limestone that now houses the world’s densest fossil fish deposits

often swapping places with other minerals—and even some organic stuff like wood

3.4" Uperocrinus Pyriformis Schizoblastus Crinoid Fossil Mississippian Age Burlington Iowa Rubellite The species is believed toLocation: Burlington Formation, Burlington, Iowa Weight: 10. 5 Ounces Dimensions: 3. 4 Inches Long, 2. 8 Inches Wide, 1. 8 Inches Thick (Plate) Mississippian Age, 323 Million Years Old The Item Pictured is the one you will receive. Uperocrinus Pyriformis Schizoblastus Sayi Crinoid Crinoids are commonly known as sea lilies, though they are animals, not plants. Crinoids are echinoderms related to starfish, sea urchins, and brittle stars. Most of the