ON THE SYSTEMATIC VIEW IN PALEONTOLOGY AND STRATIGRAPHY
Yang Zunyi Shi Xiaoying (China University of Geosciences, Beijing 100083)
Following the development of modern sciences and technology, paleontology and stratigraphy have been greatly expanded in their research scope and contents. Paleontology and stratigraphy no longer restrict themselves only to biotic description and stratigraph-ic subdivision and correlation as well as the setting up of stratigraphic sequences, but they involve a much broader scope of studies coordinating with many other disciplines. They have, therefore, become an integrated and important aspect in the geological studies. Though paleontology and stratigraphy mainly deal with the organic and inorganic records in the geological past and try to present a reasonable explanation to the geological development of any concerned region in the past based on these records. without the support of other branches of geology, however, it is impossible to accomplish such an important task. The world is naturally a well-organized system in which one thing is closely re- lated to another by some links. In geological studies, this is especially true when dealing with the evolution of the biotas. The biosphere, lithosphere and hydrosphere have formed a mutually interrelated system. Changes in one aspect would surely cause corresponding changes in all other aspects. Therefore, the studies of paleontology and stratigraphy can not concern themselves only within their old confines. They should search for a wide cooperation with other disciplines in the earth science and build themselves on a more solid and broader basis.