Solem, A. (1978). Cretaceous and Early Tertiary Camaenid Land Snails from Western North America (Mollusca: Pulmonata). Journal of Paleontology. 52(3): 581-589.
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Solem, A.
1978
Cretaceous and Early Tertiary Camaenid Land Snails from Western North America (Mollusca: Pulmonata)