A memoir on Mosasaurus and the three allied new genera, Holcodus, Conosaurus, and Amphorosteus [microform] /
Gibbes, Robert W.(Robert Wilson),1809-1866.
[Washington : Smithsonian institution,
1850]
Smithsonian institution publication 14.
"Read before the American association for the advancement of science, August, 1849."
Sabin 27280.
Sabin Group 65.
Microfiche.
Mosasauridae.
Reptiles, Fossil.