Paleozoic Succession in Missouri/Ordovician

by Thomas L. Thompson, 282 p., 163 fig., 1991.
Since 1961 (Vol. 40), many new concepts have developed
concerning stratigraphic succession in Missouri, and new
formations have been proposed. In 1965, the Missouri
Geological Survey established a list of formal names of
rock units in Missouri to serve as a standard for uniform
stratigraphic nomenclature. This report includes information
on original authors, descriptions, type sections of named
rock units in Missouri and useful historical information
on abandoned names. Reference sections of rocks
units are illustrated and described. Serves as reference
and field guide to Paleozoic formations of Missouri.