I want to know the answer to the following question:
What is the study of ancient, fossilized plants?
All the background I'm provided with is that "Cyanobacteria, the first oxygen-releasing photosynthetic organisms on Earth, are thought to have given rise to the ancestor of plants by entering into an endosymbiotic relationship with an early eukaryote, ultimately becoming the chloroplasts in plant cells.". Is that enough to answer the question?