The Jurassic Flora of Cape Lisburne Alaska.

by Knowlton, Frank Hall, 1860-1926
Published 1914

Contributions to the Geology and Paleontology of San Juan County, New Mexico.

by Knowlton, Frank Hall, 1860-1926
Published 1916

The Flora of the Fox Hills Sandstone The Flora of the Fox Hills Sandstone /

by Knowlton, Frank Hall, 1860-1926
Published 1916

A Fossil Flora from the Frontier formation of Southwestern Wyoming A Fossil Flora from the Frontier formation of Southwestern Wyoming /

by Knowlton, Frank Hall, 1860-1926
Published 1917