Two new fossil birds from the Oligocene of South Dakota
By: by Alexander Wetmore.
Series: Smithsonian miscellaneous collections -- v. 101, no. 14; Publication -- 3680; Publication (Smithsonian Institution) -- 3680.
Publisher: Smithsonian Institution
Published: 1942
Place of publication: Washington
Language: eng
Subjects: Birds, Fossil -- South Dakota; Paleontology -- Oligocene.; Paleontology -- South Dakota.
Other titles: 2 new fossil birds from the Oligocene of South Dakota
Notes: "May 11, 1942."