R. A. Robison

Larger bivalve arthropods from

Larger bivalve arthropods from the middle Cambrian of Utah

1981

Origin, taxonomy, and homeomor

Origin, taxonomy, and homeomorphs of doryagnostus (Cambrian trilobita)

1978

Geology and coal resources of

Geology and coal resources of the tropic area, Garfield County, Utah

1966

Progress report on the coal re

Progress report on the coal resources of southern Utah--1963

1964

A reconnaissance survey of the

A reconnaissance survey of the coal resources of southwestern Utah

1963