Final answer:
Paleobotany is the study of extinct plants, specifically analyzing fossilized specimens to understand how plants evolved over time.
Step-by-step explanation:
Paleobotany is the study of extinct plants and is a branch of biology. Paleobotanists analyze fossilized specimens and reconstitute the morphology of organisms that have long disappeared. By tracing the evolution of plants through the modifications in plant morphology, paleobotanists can shed light on how plants evolved over time.