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文中系统描述了鄂尔多斯盆地南缘淳化县铁瓦殿、岐山县烂泥沟上奥陶统生物礁中的层孔虫化石,包括2目5属9种,分别为囊层孔虫(Cystistroma)、拉贝希层孔虫(Labechia)、穿孔层孔虫(Forolinia)、网格层孔虫(Clathrodictyon)和蜂巢层孔虫(Eccli madictyon)。建立拉贝希层孔虫新种两个,淳化拉贝希层孔虫(新种)La-bechiachunhuaensisJiang sp.nov.,铁瓦殿拉贝希层孔虫(新种)LabechiatiewadianensisJiang sp.nov.。这些属种的发现和建立拓展了中国奥陶纪层孔虫的内容。另外,从分布区域看,囊层孔虫、拉贝希层孔虫、穿孔层孔虫和网格层孔虫是淳化县铁瓦殿上奥陶统生物礁的主要造礁生物;而岐山县烂泥沟上奥陶统生物礁只产少数蜂巢层孔虫。
The paper describes systematically the foraminifera fossils in the Upper Ordovician reefs of the Tiewa Temple and Lannigou, Chunhua County, southern Ordos Basin, including 9 species of 2 orders, 5 genera, including Cystistroma, Labechia, Forolinia, Clathrodictyon, and Eccli madictyon. Two new species of Labbechia larvae were established, LabochiatiewadianensisJiang sp.nov. (New species) La-bechiachunhuaensisJiang sp.nov. . The discovery and establishment of these genera expanded the contents of Ordovician stratospheric borer in China. In addition, from the distribution area, the macrofauna, Labbechia foraminifera, perforation foraminifera and foraminifera are the main reef creatures of the Upper Ordovician reefs in Tiewadiantang, Chunhua County; and Qishan County Upper Ordovician reefs in the muddy ditch produce only a few honeybees.