A causeway named for these creatures stretched from the Grand Plaza to a separate location named for these creatures surveyed by Ephraim G. Squier and Edwin Hamilton Davis. The Adena culture is credited with the creation of a site dedicated to these creatures around 320 BC (10[1])that was occupied by the Hopewell culture. The name of the (10[1])Sioux tribes stems from an Objibwe exonym for "little" types of these creatures. A "Great Mound" in Ohio is the world's largest (10[1])effigy (10[1])of these (10[1])creatures. A Plains Indian (10[1])exonym (10[1])for the tribes living along a major river running through much of Idaho led to it being (10[1])named after these creatures. The Gadsden flag features the "timber" type (10[1])of these creatures on a bright yellow background. The Moundville Archaeological Site houses artifacts depicting horned examples of, for 10 points, what reptile's "rattle" type? ■END■