Descriptions of New Species of Acephala and Gasteropoda, from the Tertiary Formations of Nebraska Territory, with Some General Remarks on the Geology of the Country about the Sources of the Missouri River. Ceratites Americanus
JavaScript is disabled for your browser. Some features of this site may not work without it.
Descriptions of New Species of Acephala and Gasteropoda, from the Tertiary Formations of Nebraska Territory, with Some General Remarks on the Geology of the Country about the Sources of the Missouri River. Ceratites Americanus