Publication Woodring (1938): summary
Full Citation
Woodring, W.P. 1938. Lower Pliocene mollusks and echinoids from the Los Angeles Basin, California, and their inferred environment. United States Geological Survey Professional Paper 190: 1-67. Available electronically.
Attributed Nominal Genera
Ectenagena Woodring, 1938
Woodring, 1938. U.S. Geol. Surv. Prof. Pap. 190: ??.
Phreagena Woodring, 1938
Woodring, 1938. U.S. Geol. Surv. Prof. Pap. 190: 50.