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地质矿产部岩溶地质研究所古生物组在桂林盆地尧山西侧的朝阳砖厂、江头村等地的一套黄灰色和浅黄色的泥质粉砂岩或粉砂质泥岩(该套岩性层理发育)中,发现较多的有孔虫化石,经中国地质科学院地质研究所王乃文同志的初步鉴定有如下属种: Ammonia sp., Bathysiphon cf. areacea Cushman, Cyclammina Complanata, Caribeanella cf. katasensis(ujiié), Caribeanella aff, katasensis(ujiié),Caribeanella sp., Gyroidinoides? sp., Nodellum sp., Nonion sp., Orbulina sp., Protelphidium sp., Trochamminoides cf. proteus (Karrer), Trocham
The Paleontology Unit of the Institute of Karst Geology, Ministry of Geology and Mineral Resources sets a set of yellowish-gray and light-yellow muddy siltstone or silty mudstone in the Chaoyang Brick Factory and Jiangtou Village on the west side of Yaoshan in the Guilin Basin Development), more foraminifera fossils were found. According to the preliminary identification of Comrade Wang Naiwen from Institute of Geology, Chinese Academy of Geological Sciences, the following species were identified: Ammonia sp., Bathysiphon cf. areacea Cushman, Cyclammina Complanata, Caribeanella cf. katasensis (ujiié) Caribeanella aff, katasensis (ujiié), Caribeanella sp., Gyroidinoides® sp., Nodellum sp., Nonion sp., Orbulina sp., Protelphidium sp., Trochamminoides cf. proteus (Karrer), Trocham