The tragic Paluxy River flood in 1908 uncovered 3-toed prints from the Cretaceous period, possibly Acrocanthosaurus, and were discovered by high school student George Adams in the limestone river bed.
Animals named by Langston include the theropod Acrocanthosaurus (1950), the hadrosaurid dinosaur Lophorhothon (1960), and the microsaur Carrolla (1986).