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云南省昭通市东北郊箐门出露了一条比较完整的泥盆系浅海相地层剖面,下、中、上三个统均有出露,浅海底栖生物化石丰富,研究基础也相对较好,是研究滇东北地区泥盆纪地层的一条理想剖面。由于地层剖面比较长,沉积厚度比较大,此前我们已经描述了早泥盆世和中泥盆世早期的四射珊瑚,本文继续描述该剖面的中泥盆世晚期的地层及其四射珊瑚,讨论它们的地层划分、珊瑚群对比与古生物地理。至于晚泥盆世的珊瑚,由于篇幅的关系,我们拟另文继续描述。
In the northeastern suburb of Zhaotong City, Yunnan Province, Qiongmen revealed a relatively complete Devonian shallow marine facies profile. The lower, middle and upper three monsters were all exposed. The shallow marine benthic fossils were abundant and their research foundation was relatively good. It is an ideal section to study the Devonian strata in northeastern Yunnan. Since the stratigraphic section is relatively long and the sedimentary thickness is comparatively large, we have described earlier the Early Devonian and Middle Devonian coral corals. This paper will continue to describe the Late Middle Devonian strata and its coral corals in the section, Discuss their stratigraphic division, coral assemblage and palaeogeography. As for the Late Devonian corals, we intend to continue the description because of the length of space.