Liddle, R.A.; Palmer, K.V.W. (1941). The geology and paleontology of the Cuenca-Azógues-Biblian region, provinces of Cañar and Azay, Ecuador. Bulletins of American Paleontology, 26(100): 357-418
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Liddle, R.A.; Palmer, K.V.W.
1941
The geology and paleontology of the Cuenca-Azógues-Biblian region, provinces of Cañar and Azay, Ecuador