**Scientific supplementary analysis to:** Mildner, S. (2025/2026). *A new interpretation of Ptolemy's Germania Magna*. EarthArXiv (Preprint). https://doi.org/10.31223/X5313T
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## 1. Synthesis of Evidence Chains: The Necessity of an Integrated View
The statistically secured findings of the preceding residual analysis – a highly significant eastward offset of the Elster-Lusatia Cluster of $\overline{\Delta}_\lambda \approx -93{.}1$ km ($t = -13{.}7$, $p < 0{.}001$) and the geochemical convergence of the cartometric identification *Budorigum* = Doberlug-Kirchhain with the local anthracite stress metamorphism anomaly – demand a geophysical explanation that goes beyond a purely statistical coordinate analysis. The four key publications under consideration (Nielsen et al., 2007; Arfai et al., 2018; Götze et al., 2023/2024; Weninger et al., 2008), together with Kužvart (1992) and Geersen et al. (2024), provide methodologically heterogeneous but independently derived building blocks that are systematically evaluated below and synthesised with the Mildner model. Particular attention is devoted to the Mercator map cited by Mildner, which shows a landmass named *Albionis Pars* in the *Oceanus Germanicus*, and to the hypothesis that a triggered tsunami may have contributed to an additional northward migration of the coastline through sediment deposition along the North German coast.
