[ noun ] the study of fossil plants <noun.cognition>
Paleobotany \Pa`le*o*bot"a*ny\, n. [Paleo- + botany.] That branch of paleontology which treats of fossil plants.
Phytolithology \Phy`to*li*thol"o*gy\, n. [Phyto- + lithology.] The branch of science which treats of fossil plants; -- usually called {paleobotany}, sometimes {paleophytology}.