Hanna, G. Dallas

1887 – 1970

• Fossil freshwater mollusks from Oregon, contained in the Condon Museum of the University of Oregon
• Foraminifera from the Eocene of Cowlitz River, Lewis County, Washington
• Introduced mollusks of western North America
• Pliocene lake beds near Dorris, California
• Some Eocence Foraminifera near Vacaville, California
• West American mollusks of the genus Conus-2