Paleogeographic map of Europe during the early to middle Eocene. Yellow areas indicate the position of the present-day amber Lagerst├Ątten at Bitterfeld, Gdansk and Rovno. Modified after Popov et al. 2004, Denk and Grimm 2009, Blakey 2011, Szwedo and Sontag 2013, and Wolfe et al. 2016.

 
 
  Part of: Dunlop JA, Kotthoff U, Hammel JU, Ahrens J, Harms D (2018) Arachnids in Bitterfeld amber: A unique fauna of fossils from the heart of Europe or simply old friends? Evolutionary Systematics 2: 31-44. https://doi.org/10.3897/evolsyst.2.22581