“…On the other hand, abundant empirical evidence from paleoenvironmental studies in minerotrophic bogs shows acceptable concentrations of highly preserved frustules in high-latitude minerotrophic bogs in America (e.g., [51,53,56,59,74,75]), Asia (e.g., [76][77][78]), and Europe (e.g., [63,[79][80][81]), but also in Southern Europe, in several peatlands of the Aquitania Basin area [82], French Massif Central (France) [60,61,83,84], and Central Sredna Gora Mountains (Bulgaria) [85][86][87] (Table 1 and Figure 1). Exceptionally, peatlands at even lower latitudes in the Badda peak, of more than 4000 m altitude, of the high Ethiopian mountain have diatoms with a good state of conservation as to be used in paleoenvironmental studies [88].…”