The Atapuerca localities present evidence of a long series of hominin occupations from the Early Pleistocene onward and are a key site for understanding the continuity and discontinuity of Western European technological and settlement dynamics. The TD10 unit from Gran Dolina is located in the upper part of the sequence and divided into four lithostratigraphic subunits (TD10.4 to TD10.1, from bottom to top) dated between ca. 450 ka and ca. 250 ka (Marine Isotope Stage 11 to Marine Isotope Stage 8). The technological analysis of the lithic assemblages belonging to the TD10.1 sequence aims to determine the trends among its archeological levels and check its relation to late Middle Pleistocene technological evolution and site functionality. Archeostratigraphic studies have identified several occupation events within its approximately 1.5 m of thickness, whose artifact densities and occupational models differ. However, no remarkable technical differences have been observed among them. Lithic assemblages from those events show more evolved features than other Atapuerca Mode 2 assemblages. These changes are reflected in the selective raw material management strategies; more hierarchized and predetermined reduction methods; and the progressive decrease of large cutting tools in the lithic assemblages with respect to flake tools, the latter defined by a greater typological diversification. These technological changes did not lead to a clear break with respect to previous technological models and were accompanied by other sporadic but significant changes in subsistence and behavioral strategies (bone tools and retouchers; lithic recycling, and so on), which were consolidated during the Middle Paleolithic. Hence, the archeological record from the TD10.1 subunit of Gran Dolina reflects a local stratigraphic transition from Mode 2 to Mode 3 technocomplexes, paralleling that observed in other sites in southwestern Europe.

阿塔普尔卡地区提供了从早更新世开始的一系列人类素职业的证据，并且是了解西欧技术和定居动态的连续性和不连续性的重要场所。Gran Dolina的TD10单元位于序列的上部，分为四个岩石地层学亚单元（从下到上，从TD10.4到TD10.1），日期约在。约450 ka 250 ka（海洋同位素第11阶段到海洋同位素第8阶段）。对属于TD10.1序列的石器组合进行技术分析的目的是确定其考古水平之间的趋势，并检查其与晚中更新世技术演变和站点功能的关系。考古地层学研究在其大约1。厚度为5 m，其伪影密度和职业模型不同。但是，它们之间没有发现明显的技术差异。与其他Atapuerca Mode 2组合相比，来自这些事件的岩性组合显示出更多的演变特征。这些变化反映在选择性原材料管理策略中；更多分层和预定的还原方法；相对于片状工具，石制组合中大型切削工具的数量逐渐减少，后者由更大的类型多样性决定。这些技术变更并未导致与先前技术模型的明显冲突，并且伴随着其他零星但显着的生存和行为策略变更（骨骼工具和修饰器；旧版回收等），在旧石器时代中期被合并。因此，Gran Dolina TD10.1亚基的考古记录反映了从模式2到模式3技术复合体的局部地层转换，这与在欧洲西南部其他站点所观察到的相类似。