U.S. Department of the Interior U.S. Geological Survey / Cambridge University / Lamar University / Commission for the Geologic Map of the World / International Commission on Stratigraphy / Association of American State Geologists / Federal Geographic Data Committee / Geologic Data Subcommittee / U.S. Geological Survey Geologic Names Committee / North American Commission on Stratigraphic Nomenclature / National Center / American Association of Petroleum Geologists Bulletin / USGS Geologic Names Committee / Geologic Names Committee of the U.S. Geological Survey / /
Person
Steven Craigg / Berry (Nick) Tew / Jr. / Randall C. Orndorff / Lucy Edwards / Nancy Stamm / John Repetski / David Soller / Donald E. Owen / David Fullerton / Bonnie Murchey / Leslie Ruppert / /
Position
recording secretary / Major / chair / Geologist / /
Divisions of Geologic Time— Major Chronostratigraphic and Geochronologic Units Introduction.—Effective communication in the geosciences requires consistent uses of stratigraphic nomenclature, especially divisions of