"Paleobotany." . . "Eocene Geologic Epoch." . . "From 40 to 55 million years ago" . . "Southern States." . . . . "Paleobotany Eocene." . . "Paleobotany Southern States." . . . . "The affinities and distribution of the lower Eocene flora of southeastern North America"@en . . . . . . . . . . . . . . . .