The great thickness of the Tertiary sediments in Louisiana has only recently been appreciated. As Louisiana has not possessed a gėological survey for the past 25 years, information concerning the stratigraphy of the state has appeared in many scattered publications. This paper is an attempt to bring such information together in a convenient summary. Original definitions of groups, formations, and members are quoted and footnote references are given to the more important papers dealing with the stratigraphic nomenclature and paleontology of the Tertiary of the state. The writer has presented evidence to show that the Eocene group name "Wilcox" should be abandoned in favor of the name "Sabine." He also suggests that the so-called "Middle Oligocene" "Discorbis, Heterostegina, and Marginulina zones" of the salt-dome section of south Louisiana should be correlated with the Miocene "Tampa limestone" of Florida as the marine equivalent of the Catahoula sandstone.