which improved buoyancy control and shell strength
The combination of documented provenance
Dimensions: 3 Inches Long
around 95-90 million years ago)
3.4" Platycrinites Sp, Platyceras Gastropod Crinoid Fossil Mississippian Age Burlington Iowa Raptor which improved buoyancy control andLocation: Burlington Formation, Burlington, Iowa Weight: 9. 7 Ounces Dimensions: 3. 4 Inches Long, 2. 7 Inches Wide, 1. 9 Inches Thick (Plate) Mississippian Age, 323 Million Years Old The Item Pictured is the one you will receive. Platycrinites Sp, Platyceras Gastropod Crinoid Crinoids, commonly called sea lilies, are actually animalsnot plants. They belong to the echinoderm family, alongside starfish, sea urchins, and brittle stars. Most Paleozoic