User:Abyssal/Prehistory of North America/DYK/56


 * ...that artifacts discovered at Mound Bottom, Tennessee show that the site was part of a vast Native American trading network extending to the Great Lakes, the Gulf of Mexico, and the Appalachian Mountains during the Mississippian era?
 * ... that the shrimp-like 510-million-year-old arthropod Waptia (artist's restoration pictured) was named after two mountains?