User:Abyssal/Prehistory of North America/DYK/23

... that the extinct witch-hazel Langeria is named for American philosopher Susanne Langer?
... that the extinct Miocene hickory Carya washingtonensis is known from over 50 nuts found as a rodent cache within a petrified stump?
... that the 60 million years old Carmelo Formation (pictured) is made out of thousands of layers of volcanic pebbles, sandstone and mudstone with fossils?
... that the Late Eocene marine Hoko River Formation is noted for producing crab, gastropod, cephalopod, and wood fossils?
... that an early nineteenth-century Native American man refused to ascend Spanish Hill because he feared a spirit that "made holes through Indians' bodies"?

... that Okmulgee State Park (pictured) in Oklahoma is one of only a few places in the world where the fossil coral Gymnophyllum wardi is found?
... that the extinct mantidfly Dicromantispa electromexicana was described from a solitary male insect?
...that the earliest fossil reef formations that show high biodiversity, containing the earliest corals, form the mid-Ordovician Chazy Formation, reaching from Tennessee to Labrador?
... that the Sterling Hill Mining Museum (pictured) and the nearby Franklin Mine together have over 345 minerals, including 90 that fluoresce and 35 that are found nowhere else?
... that Aquilops ("eagle face") is the most ancient definite neoceratopsian discovered in North America?