The study of fossilized plants
Paleontology and Paleobotony (although it deals with plants, not Animals)
algology, mycology, palaeobotany [Brit, Cdn], paleobotany [N. Amer], phycology, pomology, pteridology.
Fossil Plants are valuable indicators of physical and climate conditions ,under which they existed.Bees gave evidence of successive waves of forest with different genera of trees.The analysis of pollen has been employed to cover whole paleobotony research .The pollen grain "exine" is resistant and it may have long geological life,once it is deposited into sediments.But only if grain avoid mechanical strength and chemical changes such as oxidation.The fossil pollen record begins from devonian time .Pollen fossils of "primitive Gymnosperms" were dominant in Devonian and Jurassic period.