On vertebrata from the tertiary and cretaceous rocks of the North West Territory. I. The species from the Oligocene or Lower Miocene beds of the Cypress hills by E.D. Cope.
Cope, E. D. (Edward Drinker),
Original issued in series: Contributions to Canadian paleontology / Geological Survey of Canada. Vol. 3 ; pt. 1.
"Printed for the government of Canada."
FC 02 0203 no. 07381 AEU
CIHM/ICMH microfiche series ; no. 07381
Contributions to Canadian paleontology. Vol. 3 ; pt. 1.