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塔里木盆地中央隆起区的中—上奥陶统灰岩相地层露头分布在巴楚良里塔格地区的一间房—唐王城。以牙形刺动物群为依据厘定3个组的时代,从下至上为一间房组(Periodus flabellum层、Pygodus serra层,属达瑞威尔阶)、吐木休克组(Pygodus anserinus层、Baltoniodus alobatus带,属桑比阶)和良里塔格组(含B.confluens动物群层,属凯迪阶下部)。一间房组的开始标志了新一期的海进,此组下段发育1期藻丘,中段发育1期藻丘、1期瓶筐石礁丘和3—4期瓶筐石—棘屑滩,上段代表了海水加深至浪基面之下的过程;吐木休克组沉积过程中达到了海进最大值,为凝缩沉积;良里塔格组代表了逐渐海退的过程,由浅滩和3期藻丘建造组成。
The Middle-Upper Ordovician limestone facies in the central uplifted area of the Tarim Basin are located in Tangwangcheng, a room in the Liangchutageg area of Bachu. Based on the conodont group, the three age groups were determined from bottom to top: Periodic flabellum, Pygodus serra, Darreville, Pygodus anserinus, Baltoniodus alobatus belt, a Sangbei order) and the Lianglitage group (containing B.confluens fauna, belonging to the lower part of Kaidi). The beginning of a house group marks a new phase of the sea into the lower part of the group developed a period of algae mulberry, the middle section of the development of a period of algae mound, a bottle basket stone reef hill and 3-4 bottle basket stone - echinacea , The upper section represents the deepening of seawater to the process of wave basal plane; Tuamu Shike Group reached the maximum sea sediment deposition, condensation deposition; Liang Litig group represents the gradual regression process, Three phases of algae mound construction.