Churkin, Michael, Jr., and Brabb, E.E., 1965, Occurrences and stratigraphic significance of Oldhamia, a Cambrian trace fossil, in east-central Alaska, in U.S. Geological Survey, Geological survey research 1965, Chapter D: U.S. Geological Survey Professional Paper 525-D, p. D120-D124.
This publication is part of a larger work. Please see P 525-D for more information.
Paleontology