User:Abyssal/Prehistory of North America/DYK/27


 * ... that the paleobotanists David P. Penhallow and Chester A. Arnold both published studies on the extinct water-fern Azolla primaeva?
 * ... that this rockshelter (pictured) may have been inhabited more than ten thousand years ago?
 * ... that Carnufex is an extinct relative of crocodiles that lived 231 million years ago in Carolina?
 * ... that out of about 20,000 Clarno Formation fossils, only 5 were from the extinct dogwood Cornus clarnensis?
 * ... that the Queenston Formation (outcrop pictured) is used by the ceramic industry in the Canadian province of Ontario and for natural gas production in the U.S. state of New York?
 * ... that the fossil ant genus Archiponera is known from a single pair of fossils described in 1930?
 * ... that the extinct species Agulla mineralensis is the first North American snakefly to be described from Neogene fossils?
 * ... that archaeologist Vance Haynes challenged the right of Native Americans to rebury Kennewick Man—skeletal bone fragments about 9,000 years old—which Haynes said should be studied further?
 * ... that Acer castorrivularis is one of five extinct maples from the Eocene Beaver Creek flora in Montana?
 * ... that the extinct Cretaceous wasp family Plumalexiidae is known from only the two Plumalexius type specimens found in New Jersey amber?