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著名的“昭通剑齿象”是云南昭通褐煤盆地的产物,是构成昭通组的重要动物群。近年来发表的涉及云南第三系昭通组地层的报导及研究文献,均只根据昭通剑齿象的存在来讨论其时代归属与层位对比的意见,但对化石产出层位的上下界限却无详细记载。根据野外工作的实践与认识,并综合前人资料,本文旨在进一步明确昭通组地层名称的涵义,阐明这套地层的基本层序及其时代。
The famous “Zhaotong sword tooth image” is the product of the Zhaotong lignite basin in Yunnan Province and constitutes an important fauna group of the Zhaotong Formation. In recent years, the reports and research articles concerning the Zhaotong formation of Tertiary in Yunnan are all based on the existence of the Zhaotong sword-tooth image to discuss the contrast between the ownership and the horizon of the era. However, the upper and lower boundaries of the fossil output horizon No detailed record. Based on the field work practice and understanding, and combined with previous data, the purpose of this paper is to further clarify the meaning of stratum name of Zhaotong Formation and to elucidate the basic sequence and era of this stratum.