The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming

Citation

Lull, R. S. (1915). The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming. American Journal of Science s4-40(238): 319-348. American Journal of Science. doi:10.2475/ajs.s4-40.238.319

Cited by genera

• Triceratops

  Mentioned the unpublished name Triceratops ingens without description.