Note 5 — IV
Reading edition
Cope: "The Vertebrata of the Cretaceous Formations of the West," p. 50, being the "Report of the United States Geological Survey of the Territories," Vol. II.
Reading edition
Cope: "The Vertebrata of the Cretaceous Formations of the West," p. 50, being the "Report of the United States Geological Survey of the Territories," Vol. II.