Triassic of the American West


Book Description










Jurassic Paleobiogeography of the Conterminous United States in Its Continental Setting


Book Description

Paleogeographic changes in the United States during Jurassic time are revealed by the distribution, succession, and differentiation of molluscan faunas; by gross stratigraphic changes; by the position, extent, and duration of unconformities; and by comparisons with Jurassic data elsewhere in North America.