Een nieuwe ankylosaurier, Nodocephalosaurus kirtlandensis Sullivan, 1999. Sullivan, R. M., 1999. "Nodocephalosaurus kirtlandensis, gen. et sp. nov., a new ankylosaurid dinosaur (Ornithischia: Ankylosauria) from the Upper Cretaceous Kirtland Formation (upper Campanian), San Juan Basin, New Mexico," Journal of Vertebrate Paleontology19(1): 126-139 [Maart 15, 1999].