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苏联外高加索地区的二迭系,特别是上二迭统,是研究地层的重要地区之一。多年来,虽有不少地质学家及古生物学家在该区做了许多工作,但迄今对它的隶属时代和划分对比,尚存在着疑问和不正确的意见。近年,苏联科学院古生物研究所等单位的古生物学家们,对外高加索地区上二迭统和下三迭统地层及古生物作了较系统的工作,提出有关地层的划分意见并讨论二迭纪和三迭纪界线上的生物羣有关问题。这些成果不但为该区今后进一步开展工作打下基础,而且给世界有关地层对比提供了线索。
The Permian, especially Upper Permian, in the Transcaucasia region of the Soviet Union is one of the most important areas for studying stratigraphy. Although many geologists and paleontologists have done a lot of work in this area over the years, so far there are doubts and incorrect opinions about the age and classification of their subordinates. In recent years, paleontologists such as the Institute of Paleontology at the Soviet Academy of Sciences made systematic work on the Upper Permian and Lower Triassic strata and paleontology in the outer Caucasus, put forward their opinions on stratigraphic division, Diebold on the line of biota related issues. These achievements not only lay the foundation for the further work of the area in the future, but also provide clues to the world’s stratigraphic correlation.