Dickerson, R. E. (1917). Climate and its influence upon the Oligocene faunas of the Pacific coast, with descriptions of some new species from the Molopophorus lincolnensis Zone. Proceedings of the California Academy of Sciences, forth series. 7(6): 157-192, pls. 27-31.
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Dickerson, R. E.
1917
Climate and its influence upon the Oligocene faunas of the Pacific coast, with descriptions of some new species from the <i>Molopophorus lincolnensis</i> Zone
Proceedings of the California Academy of Sciences, forth series