USGS professional paper · 1930 · 37 citations · 0 references
Natural SciencesGeologyPlant SciencesPaleobiologyPaleobotanyPaleoecologyFossil PlantsPaleoecology Of PlantsEnvironmental Conditions AssessmentEocene FlorasEocene Fossil LeavesFossil FloraNew Species DescriptionPaleoecology Of Vegetation
I cOllll1lenced my studies of the ",'Tilcox in 1909. Seven years afterward the first account of the flora 1 wus published in what seemed at the time to be a comprehensive study, in which I brought together all that ,,"as then known of the flora, its relationships, and the environmental conditions which it indicated .. In that work, in accordnJ1ce with what I believe to be the propel' method of studying fossil foliar remains, spe-ciJic lines were rather finely drawn, resulting, as has since been proved, in an overmuHi plication of species.