MolluscaBase taxon details
original description
(of Triforis washingtoniana Dickerson, 1915 †) Dickerson, R. E. 1915. Fauna of the type Tejon: its relation to the Cowlitz Phase of the Tejon Group of Washington. Proceedings of the California Academy of Sciences, series 4, 5(3):33-98, 11 pls.
page(s): 63 [details]