Taylor, D.W. (1963). Mollusks of the Black Butte local fauna. In: Shotwell, J.A.; Bowen, R.G.; Gray, W.L.; Gregory, D.C.; Taylor, D.W.; Russell, D.E. (eds) The Juntura Basin: Studies in Earth History and Paleoecology. Transactions of the American Philosophical Society, new series. 53(1): 35-41.
Mollusks of the Black Butte local fauna. In: Shotwell, J.A.; Bowen, R.G.; Gray, W.L.; Gregory, D.C.; Taylor, D.W.; Russell, D.E. (eds) The Juntura Basin: Studies in Earth History and Paleoecology
Transactions of the American Philosophical Society, new series