Structure and relationships of opisthoclian dinosaurs. : Pt. II. The Brachiosaurid /

by Riggs, Elmer S., 1869-1963
Published 1904

The fore leg and pectoral girdle of Morosaurus : with a note on the genus Camarosaurus /

by Riggs, Elmer S., 1869-1963
Published 1901

The dinosaur beds of the Grand river valley of Colorado /

by Riggs, Elmer S., 1869-1963
Published 1901

Structure and relationships of opisthoclian dinosaurs. : Pt. I. Apatosaurus Marsh /

by Riggs, Elmer S., 1869-1963
Published 1903

The carapace and plastron of Basilemys sinuosus : a new fossil tortoise from the Laramie beds of Montana /

by Riggs, Elmer S., 1869-1963
Published 1906

New or little known titanotheres from the lower Uintah formations : with notes on the stratigraphy and distribution of fossils /

by Riggs, Elmer S., 1869-1963
Published 1912

Preliminary description of a new marsupial saber-tooth from the Pliocene of Argentina /

by Riggs, Elmer S., 1869-1963
Published 1933

A skeleton of Astrapotherium /

by Riggs, Elmer S., 1869-1963
Published 1935

The Mylagaulid ; an extinct family of sciuromorph rodents /

by Riggs, Elmer S., 1869-1963
Published 1899

A specimen of Elasmosaurus serpentinus /

by Riggs, Elmer S., 1869-1963
Published 1939

Some early Miocene carnivores /

by Riggs, Elmer S., 1869-1963
Published 1945

Preliminary description of two Lower Miocene carnivores /

by Riggs, Elmer S., 1869-1963
Published 1942