3.1" Actinocrinites Multiradiatus Crinoid Fossil Mississippian Age Burlington, Iowa Potaman SP Sentinel Butte Formation

Sentinel Butte Formation

these fossil clams are highly prized by collectors and paleontology enthusiasts

provide valuable information on Paleozoic marine life

Aragonite was once the more prevalent form in Earth’s history

This vertebral specimen provides direct paleontological evidence of Basilosaurus anatomy and physiology

3.1" Actinocrinites Multiradiatus Crinoid Fossil Mississippian Age Burlington, Iowa Potaman SP Sentinel Butte FormationLocation: Burlington Formation, Burlington, Iowa Weight: 8. 6 Ounces Dimensions: 3. 1 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. Actinocrinites Multiradiatus 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 Paleozoic crinoid