2.9" Teleiocrinous Umbrososus Crinoid Fossil Mississippian Age Burlington Iowa Crotalocephalus Gibbus often referred to as “brimstone

often referred to as “brimstone

They provide key evidence of early marine ecosystems

Mosasaurs represent the largest lizards to have ever existed

facilitating bottom-dwelling behavior in lakes and river systems while stabilizing the animal during feeding

feeding on soft vegetation

2.9" Teleiocrinous Umbrososus Crinoid Fossil Mississippian Age Burlington Iowa Crotalocephalus Gibbus often referred to as “brimstoneLocation: Burlington Formation, Burlington, Iowa Weight: 8. 8 Ounces Dimensions: 2. 9 Inches Long, 2. 9 Inches Wide, 1. 7 Inches Thick (Plate) Mississippian Age, 323 Million Years Old The Item Pictured is the one you will receive. Teleiocrinous Umbrososus and Globoblastus Norwoodi 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