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粤北曲江、连平、翁源及粤西阳春诸地的黄龙组为一套灰至深灰色碳酸盐岩沉积;它与下伏地层大埔组白云岩层呈整合接触,大埔组至今未发现生物依据,因而其时代归属早石炭世抑或晚石炭世还有待进一步研究;黄龙组与上覆地层船山组的关系为连续沉积,但后者含Triticites等(竹蜓)类,其时代应归属晚石炭世晚期。 该区黄龙组含有十分丰富的(竹蜓)类,经笔者研究计有14个属,51个种或亚种(表1),其中未定种一个,新种6个。根据它们在该地区黄龙组剖面上的分布规律,可分为上、下两个(竹蜓)带,其中上带包含三个亚带(广东地区石炭系另有报告,本文侧重于(竹蜓)类动物群的讨论,
The Huanglong Formation in Qujiang, Lianping, Wengyuan and Yangchun areas in western Guangdong is a set of gray-to-dark-gray carbonate sediments; it is in integrated contact with the dolomite layers of the Dapu Formation in the underlying strata, No biological basis was found, so its age belongs to the Early Carboniferous or the Late Carboniferous remains to be further studied. The relationship between the Huanglong Formation and the Chuanshan Formation in the overlying strata is continuous deposition, but the latter contains Triticites and other species, Belong to the Late Carboniferous. There are 14 genera, 51 species or subspecies (Table 1) in the Huanglong Formation in this area, of which 6 species are undetermined. According to their distribution patterns in the Huanglong Formation in this area, they can be divided into upper and lower two (bamboo and dragonfly) belts, of which the upper belt contains three sub-belts (Carboniferous in Guangdong is reported separately. This article focuses on ) Fauna discussion,