User:Abyssal/Prehistory of North America/DYK/4

... that within the United States, dinosaur fossils (example pictured) have been found in Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Georgia, Idaho, Iowa, Kansas, Louisiana, Maryland, Massachusetts, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, D.C., and Wyoming, but not in Florida, Hawaii, Illinois, Indiana, Kentucky, Maine, Michigan, New Hampshire, Ohio, Rhode Island, Vermont, Washington, West Virginia, or Wisconsin?
... that Mississippian stone statuary (examples pictured), made by members of the Mississippian culture (800 to 1600 CE), are artifacts of polished stone in the shape of human figurines?
... that oviraptorosaurs were thought to be egg-eaters after the discovery of Oviraptor on a nest of presumed Protoceratops eggs, until the nest was recognized as belonging to Oviraptor itself?

...that the Norte Chico civilization is the oldest known civilization in the Americas?
... that the extinct mason bee species Anthidium exhumatum and Anthidium scudderi are known from the Eocene Florissant Formation in Colorado?
... that paleontologist Gerta Keller theorizes that dinosaurs did not become extinct until 300,000 years after the Chicxulub meteor, though she agrees that "I'm sure the day after, they had a headache"?
...that the enigmatic Ediacaran biota (fossil pictured) have been classified into every major group of lifeforms, including their own kingdom?
...that the Stag-moose (Cervalces scotti) went extinct about 11,500 years ago, part of a mass extinction of large North American mammals toward the end of the most recent ice age?