The discovery of a tusk and a rib of a straight-tusked elephant within layer 13 II-2c3 of the famous Lower Palaeolithic archaeological site Schöningen (district Helmstedt, Lower-Saxony, Germany) provided the reason for studying the climatic and ecological conditions of this part of the Middle Pleistocene Reinsdorf sequence in high resolution in relation to new chronometric data. Sediment, pollen, aquatic microfossil (diatoms, ostracods, gyrogonites of charophytes) and micro mammalian analyses provide evidence for a strong environmental change and landscape opening following the post-temperate boreal forest phase of the Reinsdorf Interglacial. Palynological and palaeontological evidence from this horizon suggest increasing dryness and seasonality. The high proportions of non-arboreal pollen including Poaceae as well as a major decrease of thermophile tree taxa indicate the development of zonal steppe environments. The assemblage of small mammal remains includes indicators of temperate as well as cold climatic conditions. A bone tool together with flint artefacts clearly show the presence of hominins in this context. Based on palaeoecological evidence and new luminescence dating, previous correlations of the Reinsdorf sequence to Marine Isotope Stage (MIS) 9 and thus of the interglacial sediments to MIS 9e are confirmed and the onset of the first post-interglacial steppe phase represented by layer 13 II-2c3 to MIS 9d is proposed.

在著名的下旧石器时代考古遗址Schöningen（德国下萨克森州Helmstedt区）的第13 II-2c3层中发现了一只长牙大象的象牙和肋骨，这为研究该地区的气候和生态条件提供了理由与新的计时数据相关的高分辨率的中更新世Reinsdorf序列的一部分。沉积物，花粉，水生微化石（硅藻，真人纲动物，硅藻土的陀螺石）和微型哺乳动物分析提供了证据，证明在Reinsdorf Interglacial的温带北方森林森林阶段之后，强烈的环境变化和景观开放。从这一观点出发的古生物学和古生物学证据表明，干燥和季节性增加。非乔木花粉（包括禾本科）的比例很高，并且嗜热树木类群的大量减少表明地带草原环境的发展。小型哺乳动物遗骸的集合包括温带以及寒冷气候条件的指示。在这种情况下，骨骼工具和fl石制品可以清楚地显示出人类素的存在。根据古生态学证据和新的发光年代学，确认了Reinsdorf序列与海洋同位素阶段（MIS）9的先前相关性，从而确认了与MIS 9e的冰间沉积物的相关性，并由第13 II层代表了第一个冰间期后草原阶段的开始。建议将-2c3转换为MIS 9d。小型哺乳动物遗骸的集合包括温带以及寒冷气候条件的指示。在这种情况下，骨骼工具和fl石制品可以清楚地显示出人类素的存在。根据古生态学证据和新的发光年代学，确认了Reinsdorf序列与海洋同位素阶段（MIS）9的先前相关性，从而确认了与MIS 9e的冰间沉积物的相关性，并由第13 II层代表了第一个冰间期后草原阶段的开始。建议将-2c3转换为MIS 9d。小型哺乳动物遗骸的集合包括温带以及寒冷气候条件的指示。在这种情况下，骨骼工具和fl石制品可以清楚地显示出人类素的存在。根据古生态学证据和新的发光年代学，确认了Reinsdorf序列与海洋同位素阶段（MIS）9的先前相关性，从而确认了与MIS 9e的冰间沉积物的相关性，并由第13 II层代表了第一个冰间期后草原阶段的开始。建议将-2c3转换为MIS 9d。