Abstract Palynomorph assemblages and palynofacies analyses have been performed on several core samples from the Devonian–Carboniferous deposits identified in five wells located within the eastern region of the Moesian Platform. The investigated sections include, in ascending stratigraphic order, the Ţăndărei, Smirna, Călărasi and Vlasin formations. Based on the stratigraphic distribution of key taxa identified (miospores, chitinozoans, acritarchs), seven biozone intervals (four for the Devonian and three for the Carboniferous) have been recognized. The oldest samples were dated as being part of the micrornatus-newportense (MN) – lower part of breconensis-zavallatus (BZ) Assemblage Zones (Early Devonian), while the younger ones are assigned to the kosankei-varioreticulatus (KV) – nobilis-junior (NJ) Assemblage Zones (Pennsylvanian). Palynofacies observations suggest a fairly distal depositional environment during the period between the Lochkovian and Pragian times, followed by some proximal/fluvio-deltaic conditions in Emsian–Early Eifelian (top of the Ţăndărei Formation). The upper Tournaisian to Serpukhovian sedimentary rocks of the Călărasi Formation and lower part of Vlasin Formation were deposited in inner neritic environments. Mud-dominated dysoxic/anoxic conditions of the Bashkirian, abruptly transitioned to deltaic deposition and oxidizing environments that persisted to the Moscovian. The Early Devonian terrestrial palynoflora is dominated by trilete spores which belong to lowland vegetation (vascular plants), the latter preferring areas with open connections via rivers to marine sedimentary basins. Carboniferous samples yielded only terrestrial miospores of various types of arborescent and herbaceous lycopsids and ferns, suggesting different habitats such as non-flooded wetlands or swamps within coastal plain and continental interiors. These assemblages of Carboniferous miospores are an indication of neutral-humid climatic conditions which existed at the time of deposition.

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Moesian 地台东部泥盆纪-石炭纪地下剖面的古环境解释和孢粉植物群（罗马尼亚）

摘要 对 Moesian 地台东部地区 5 口井中发现的泥盆纪-石炭纪矿床的几个岩心样品进行了孢粉体组合和孢粉相分析。调查的地层按升序包括 Ţăndărei、Smirna、Călărasi 和 Vlasin 地层。根据已确定的关键分类群（小孢子、几丁质动物、acritarchs）的地层分布，已识别出七个生物区区间（泥盆纪四个，石炭纪三个）。最古老的样本被确定为 micrornatus-newportense (MN) - breconensis-zavallatus (BZ) 组合区的下部（泥盆纪早期）的一部分，而年轻的样本被分配到 kosankei-varioreticulatus (KV) - nobilis-初级（新泽西州）组合区（宾夕法尼亚州）。孢粉相观察表明在 Lochkovian 和 Pragian 时期之间的时期有相当远的沉积环境，其次是 Emsian-Early Eifelian（Ţăndărei 组顶部）的一些近端/河流-三角洲条件。Călărasi 组上部 Tournaisian 至 Serpukhovian 沉积岩和 Vlasin 组下部沉积岩沉积在内浅海环境中。巴什基尔人以泥浆为主的缺氧/缺氧条件突然转变为三角洲沉积和氧化环境，这种环境一直持续到莫斯科人。早泥盆世陆生孢粉植物群以属于低地植被（维管植物）的三叶孢子为主，后者更喜欢通过河流与海洋沉积盆地有开放连接的区域。石炭纪样品只产生了各种类型的乔木和草本石蒜和蕨类植物的陆生小孢子，表明不同的栖息地，如沿海平原和大陆内部的非洪水湿地或沼泽。这些石炭纪中孢子组合表明沉积时存在的中性潮湿气候条件。