Permo-Triassic boundary in Idaho, Montana, and Wyoming

Norman Dennis Newell; Bernhard Kummel

doi:10.2475/ajs.239.3.204

Loading [Contrib]/a11y/accessibility-menu.js

Newell, N. D., & Kummel, B. (1941). Permo-Triassic boundary in Idaho, Montana, and Wyoming. American Journal of Science, 239(3), 204–208. https://doi.org/10.2475/ajs.239.3.204

View more stats

Permo-Triassic Boundary in Idaho, Montana, and Wyoming