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Definition:, Paleantology is the study' of ancient life forms.It is the study’of the history of life on Earth as based on Fossils., Fossils are the remains of plants, animals ,fungi bacteria etc that have been replaced by rock material or impressions of organism preserved in rocks., Palaeobotany is the study'of ancient plants using plants Fossils found in sedimentary rocks.

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What is palaeobotany:, Palaeobotany (from the Greek words Paleon = old and botany = study of plants), is the branch of Paleantology or paleobiology dealing with the recovery and identification of plant remains from geological contexts, and their use for the biological reconstruction of past environments (paleogeography), and both the evolutionary history of plants, with a bearing upon the evolution of life in general. Palaeobotany is important in the reconstruction of ancient ecological systems and climate, known as paleoecology and paleoclimatology respectively; and is fundamental to the study of geen plant development and evolution. Palaeobotany has also become important to the field of archaeology, primarily for the use of phytoliths in relative dating and in paleoethnobotany., Palaeobotany is the study of fossil Plants

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Historical aspects of palaeobotany:, Kaspar Maria von Sternberg, the "father of Palaeobotany," (1761–1838), was a Bohemian (from the historical , region in central Europe, now part of the Czech Republic), theologian, mineralogist, and botanist. He established , the Bohemian National Museum in Prague and is deemed to be the founder of modern Palaeobotany., , Théodore Brongniart (1801-1876) was a French botanist whose classification of fossil plants drew surprisingly , accurate relations between extinct and existing forms prior to Charles Darwin's principles of organic evolution. , His work earned him the distinction as the founder of modern classification in paleobotany. , Prof. Birbal Sahni (1891-1949) is known as the Father of Indian Palaeobotany. He established the school of Palaeobotany in the Department of Botany at University of Lucknow which later on became the Birbal Sahani Institute of Palaeobotany (BSIP) and has now been renamed as Birbal Sahni Institute of Palaeosciences.