MolluscaBase source details
Knight J.B. (1934). The gastropods of the St. Louis, Missouri, Pennsylvanian outlier. VII. The Euomphalidae and Platyceratidae. Journal of Paleontology. 8(2): 139-166.
489277
Knight J.B.
1934
The gastropods of the St. Louis, Missouri, Pennsylvanian outlier. VII. The Euomphalidae and Platyceratidae
Journal of Paleontology
8(2): 139-166
Publication
Date
action
by
Helicostylus Knight, 1934 † accepted as Strophostylus J. Hall, 1859 † (original description)
Helicostylus girtyi Knight, 1934 † accepted as Strophostylus girtyi (Knight, 1934) † (original description)
Helicostylus girtyi Knight, 1934 † accepted as Strophostylus girtyi (Knight, 1934) † (original description)