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近年来云南禄丰地区在地层学方面有两项重要的进展:①川街盆地不仅具有“禄丰蜥龙动物群”,在其上部还相继发现了中侏罗世“川街龙动物群”和相当晚侏罗世的恐龙化石;②按照国际地层规范,厘定并新建了一套侏罗纪岩石地层单位。新近又在前人称之为“上禄丰组”下部(川街组)及“酒红层”(麻地山组)中分别鉴定出中侏罗世轮藻组合Aclistocharamaanshanensis-Aclistocharaabshirira-Aclistocharakarierica和晚侏罗世早期轮藻组合Aclistocharajaisalmerensis-Aclistocharakarierica-Mesocharavoluta。这一晚侏罗世早期轮藻化石组合在中国属首次发现。
In recent years, the Lufeng area in Yunnan Province has two important advances in stratigraphy: (1) The Chuanjie Basin not only has the “Lufeng Iguanodon fauna,” but also successively discovered the Middle Jurassic “Chuanjie Dragon Fauna” And relatively late Jurassic dinosaur fossils. ② According to the international stratigraphic specifications, a set of Jurassic lithostratigraphic units were determined and constructed. Recently, we also identified Aclistocharamaanshanensis-Aclistocharaabshirira-Aclistocharakarierica and Late Jurassic, respectively, in the lower part of the Upper Lufeng Formation (Chuanjie Formation) and the “Burgundy Formation” Chalcis combination Aclistocharajaisalmerensis-Aclistocharakarierica-Mesocharavoluta. This late Jurassic charophyte assemblage was first discovered in China.