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Traits source details
Hanna, G.D. (1920). Miocene Land Shells from Oregon. The University of Kansas Science Bulletin. 13(1): 3-12.
290884
Hanna, G.D.
1920
Miocene Land Shells from Oregon
The University of Kansas Science Bulletin
13(1): 3-12
Publication
Date action by
Gastrodonta imperforata G. D. Hanna, 1920 † (original description)
Polygyra expansa G. D. Hanna, 1920 † (original description) Polygyra martini G. D. Hanna, 1920 † accepted as Helminthoglypta martini (G. D. Hanna, 1920) † (original description) Pyramidula mascallensis G. D. Hanna, 1920 † (original description) |