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Body size distributions of three major spider families captured in amber extracted from the Baltic region and the Dominican Republic. Skewness values are: Dictynidae (Dominican Republic=2.237±0.58, Baltic=0.805±0.41); Salticidae (Dominican Republic=1.046±0.56, Baltic=0.662±0.39); Theridiidae (Dominican Republic =1.611±0.38, Baltic=0.513±0.37).
