Figure 3From: Evidence for survival of Pleistocene climatic changes in Northern refugia by the land snail Trochoidea geyeri (Soós 1926) (Helicellinae, Stylommatophora)Geographical distribution of 3 and 4-step clades of 16S rDNA variation and inferred events in Trochoidea geyeri . The font size of the inferences decreases with nesting level.Back to article page