JORDAN, D.S. & BEAL, C.H. (1913)
Supplementary notes on fossil sharks. Bulletin Department of Geology, University of California, 7: 243–256, 5 text–fig.

JORDAN, D.S. & GILBERT, P.W. (1919)
Fossil fishes of southern california, Part II. Fossil Fishes of the Miocene (Monterey) Formations. Stanford University Publications, University Series: 13–60

JORDAN, D.S. & HANNIBAL, H. (1923)
Fossil sharks and rays of the Pacific slope of North America. Bulletin of the Southern California Academy of Sciences, 22: 27–63, pl. 1–10

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.