A Late Devonian to (?)Early Mississippian section at Hushoot Shiveetiin gol in the Baruunhuurai Terrane of the Central Asian Orogenic Belt (CAOB) exposes large parts of cyclic Famennian shallow-water siliciclastic shelf deposits composed of siltstones, sandstones, shales, volcaniclastics, and intercalated autochthonous carbonates. The youngest part of the section, possibly Early Mississippian, is represented by arkosic sandstones with large plant remains. The facies reflects a range from shallow-intertidal to outer ramp settings. In terms of conodont stratigraphy, the Hushoot Shiveetiin gol section ranges from the Palmatolepis minuta minuta Biozone to at least the Palmatolepis rugosa trachytera Biozone. Hiatuses of several conodont biozones occur due to the facies setting (erosion and reworked sediments which are recognized by reworked conodonts) rather than thrusting or folding. The environmental setting was characterized by coeval subaerial volcanism resulting in numerous pyroclastic deposits. The depositional environments and intense volcanic activity at the Hushoot Shiveetiin gol section limited the stratigraphic distribution, abundance, and diversity of many elements of the fauna such as brachiopods. Ostracods were very abundant and diverse through many parts of the section. Although limited in stratigraphic distribution, the crinoid fauna is the most diverse Palaeozoic fauna collected from Mongolia to date and supports the hypothesis that the CAOB was a biodiversity hotspot in the aftermath of the Frasnian–Famennian extinction event.

中亚造山带（CAOB）Baruunhuurai地带的Hushoot Shiveetiin火山岩的晚泥盆世至（？）早密西西比剖面，暴露了由粉砂岩，砂岩，页岩，火山碎屑岩和插层的原生碳酸盐。该区域最年轻的部分可能是早期的密西西比河，以具有大量植物残骸的方舟砂岩为代表。这些相反映了从浅潮间带到外斜坡的范围。就牙形质地层而言，Hushoot Shiveetiin gol剖面范围从帕尔帕托皮斯minuta minuta生物区到至少帕尔帕托皮斯rugosa trachytera生物区。由于相的设置（侵蚀和返工的沉积物已被返工的牙形体识别），出现了多个牙形生物区的隐居现象，而不是推动或折叠。环境环境的特征是中世纪的空中火山活动，导致大量火山碎屑沉积。Hushoot Shiveetiin gol剖面的沉积环境和强烈的火山活动限制了地层分布，丰富度和动物群许多元素（例如腕足动物）的多样性。在本节的许多部分中，兽脚类动物非常丰富和多样。尽管地层分布有限，