Carter, Claire, Churkin, Michael, Jr., Tailleur, I.L., and others, 1973, Biostratigraphic record extended to Early Silurian or Ordovician in western Brooks Range, in U.S. Geological Survey, Geological survey research 1973: U.S. Geological Survey Professional Paper 850, p. 63-64.
This publication is part of a larger work. Please see P 850 for more information.
Geology