Toponyms and Ethnonyms in the Names of Rovno Amber Animals and Plants

Out of 49 names of genera described from Rovno amber, 10 names (20.4 %) are related to Ukrainian toponyms. One way or another, 15.7 % of names out of 217 animal species described from Rovno amber and 67 % out of 6 described plant species are related to Ukrainian toponyms and ethnonyms. Today, only 8 out of 217 species described from Rovno amber, are known from Baltic amber. Th e ratio between Ukrainian and Baltic toponyms in the names of Rovno representatives of any given family directly depends both on the degree of exploration of a family in the corresponding faunas and floras, and on the degree of a family’s link with the ecosystem of the amber forest itself. Ant Formica paleopolonica Dlussky is recorded for Rovno amber for the first time.