Theodore Delevoryas (July 22, 1929 – June 29, 2017) was an American paleobotanist who was an expert on Mesozoic fossil plants.
[1] Delevoryas became an assistant professor at Michigan State University from 1955 to 1956, before being hired as an instructor at Yale University in New Haven, Connecticut.
He was appointed as a professor and as an associate curator of paleobotany at the Yale Peabody Museum of Natural History.
In 1972, he left Yale for a position as professor of botany at The University of Texas at Austin.
[1] Throughout his career, he published over 100 scholarly articles on fossil ferns, conifers, and cycads.