Fossil Plant

Young, R.A., 1966, Cenozoic geology along the edge of the Colorado Plateau in northwestern Arizona: St. Louis, Mo., Washington University, Ph.D. dissertation, 167 p., 4 sheets, scale 1:31,680; abstract in Dissertation Abstracts International, v. 27, p. 1994B-1995B.

Wyckoff, R.W.G., Davidson, F.D., Schwab, K.W., Gottesfeld, A.S., Brown, T.L., and Buseck, P.R., 1972, Preliminary research in the Triassic Chinle Formation: Flagstaff, Museum of Northern Arizona Bulletin no. 47, supplement, 23 p.

Wilt, J.C., 1971, Fossils of Arizona: Arizona Bureau of Mines, unpublished manuscript, 399 p. [available for inspection at Arizona Geological Survey, 416 W. Congress, Suite 100, Tucson, Ariz.].

Willden, Ronald, 1964, Geology of the Christmas quadrangle, Gila and Pinal Counties, Arizona: U.S. Geological Survey Bulletin 1161-E, p. E1-E64, 2 sheets, scales 1:62,500 and 1:250,000.

White, C.D., 1936, Some features of the early Permian flora of America: International Geological Congress, 16th, Washington, D.C., 1933, Report, v. 1, p. 679-689.

White, C.D., 1934, The seeds of Supaia, a Permian pteridosperm [abs.]: Science, new series v. 79, p. 462.

White, C.D., 1930, Deposition and age of the Hermit shale [abs.]: Geological Society of America Bulletin, v. 41, p. 47.

White, C.D., 1929, The flora of the Hermit shale in Grand Canyon: Grand Canyon Nature Notes, v. 4, p. 24-25.

White, C.D., 1929, Study of the fossil floras in the Grand Canyon, Arizona: Carnegie Institution of Washington Year Book 28, p. 392-393.

White, C.D., 1929, Interpreting the Grand Canyon: Science, new series, v. 69, p. 671-672.