Vol. s3-41, Issue 242, 1891February 01, 1891 EDT
The Gigantic Ceratopsidae, or Horned Dinosaurs, of North America
The Gigantic Ceratopsidae, or Horned Dinosaurs, of North America
Othniel Charles Marsh,
Marsh, O. C. (1891). The gigantic Ceratopsidae, or horned dinosaurs, of North America. American Journal of Science, s3-41(242), 167–178. https://doi.org/10.2475/ajs.s3-41.242.167