William Taylor Thom Jr. and Carroll Edward "Cy Dobbin—USGS—Correlation of the Lebo member of the Fort Union with Cannonball member of the Lance.
Carroll Edward "Cy" Dobbin and John Bernard Reeside Jr.—USGS—The Lance-Fox contact in eastern Montana and the Dakotas.
View all talks from 1923 | Go to Meeting number 384 | Go to Meeting number 386 |