4.8" Ascocystitis Crinoid Stems Echinoderm Fossil Morality Plate Ordovician Age Stand Hypacrosaurus Its powerful tail and wing-shaped

Its powerful tail and wing-shaped pectoral fins propelled the 17-foot (5-meter) creature swiftly through surface waters

herbivorous saurolophine hadrosaurid

provided lightweight strength and greater muscle attachment

This crest was also hollow

The rear of its skull supported large jaw muscles

4.8" Ascocystitis Crinoid Stems Echinoderm Fossil Morality Plate Ordovician Age Stand Hypacrosaurus Its powerful tail and wing-shapedLocation: El Kaid Errami, Morocco Weight: 7. 3 Ounces Dimensions: 4. 8 Inches Long, 3. 3 Inches Wide, 0. 6 Inches Thick (Plate) Ordovician Age, 444 Million Years Comes with a free stand. The Item Pictured is the one you will receive. Ascocystitis 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 species