Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States: With Stratigraphic Sections A, North of Pyramid Peak, Calif

Calymenid and Other Ordovician Trilobites from Kentucky and Ohio

Ordovician Fossils from Wells in the Williston Basin, Eastern Montana: Issue 1021

Fossils from the Ordovician Bioherm at Meiklejohn Peak, Nevada

Ordovician Graptolites of the Basin Ranges in California, Nevada, Utah, and Idaho: Issues 1134-1135

Ordovician Graptolites of the Basin Ranges in California, Nevada, Utah, and Idaho

The Kinnikinic Quartzite of Central Idaho: Redefinition and Subdivision, Issue 1254

Geology and Ground Water in Verde Valley--: The Mogollon Rim Region, Arizona, Issues 1177-1180