01354cam a22003131 4500 gs 47000147 DLC 20260227111352.0 780206s1946 xx 000 0 eng c gs 47000147 (OCoLC)3613171 U.S. Geol. survey. Library OT OCoLC DLC premarc QE133 .G3 551.72 Gardner, L. S. (Louis Samuel), 1904- Stratigraphic sections of upper Paleozoic and Mesozoic rocks in south-central Montana, by L. S. Gardner, T. A. Hendricks, H. D. Hadley, and C. P. Rogers, jr., with description of fauna of Amsden and Heath formations, by L. L. Sloss. Butte, Mont., Montana School of mines, 1946. vi, 100 p. map. 28 cm. Montana. State bureau of mines and geology. Memoir no. 24 "Prepared as part of the Oil and gas investigations by the Geological survey, U.S. Dept. of the interior, with the cooperation of the Montana Bureau of mines and geology." "References": p. 99-100. Geology Montana. Paleontology Montana. Geology, Stratigraphic Paleozoic. Geology, Stratigraphic Mesozoic. Sloss, L. L. (Laurence Louis), 1913- Geological Survey (U.S.) 28151 28151