PHILLIPS, F.J. & WELTON, B.J. & WELTON, J. (1976)
Paleontologic studies of the Middle Tertiary Skooner Gulch and Gallaway Formations at Point Arena, California. In: A. E. Fritsche, H. Terbest, Jr., & W. W. Wornardt (eds.), The Neogene symposium. Proc. Soc. Econ. Pal. Min. (Pacific Sect. Ann. Meeting, San Francisco) 137–154. 5 figs. 5 pls.