Paleobotany
Paleobotany, or botanical paleontology is the science of fossil plant remains, a branch of botany closely associated with such natural sciences as geology and geography. Being an application of botany to geology, it was based almost simultaneously with general, or zoological, paleontology and was for the first time in the writings of Schlottheim and Sternberg. The classic work of Bronyar "Histore des végétaux fossiles" is the true beginning of botanical paleontology. Further searches of plant remains among fossils made it possible to trace a long series of changes in the flora of the Earth, from giant ferns and horsetails to present forms.