†Siphonalia (Nassicola) bicarinata monospina Turner 1938
Gastropoda - Neogastropoda - Buccinidae
Alternative combination: Siphonalia bicarinata monospina
Full reference: F. E. Turner. 1938. Stratigraphy and Mollusca of the Eocene of western Oregon. Geological Society of America Special Paper (10)1-130
Belongs to Siphonalia (Nassicola) bicarinata according to J. W. Ruth 1942
See also Turner 1938
Sister taxa: Siphonalia (Nassicola) bicarinata crooki, Siphonalia (Nassicola) bicarinata packi, Siphonalia (Nassicola) bicarinata wheatlandensis
Type specimen: UC 33678, a shell
Distribution: there are no occurrences of Siphonalia (Nassicola) bicarinata monospina in the database