“…They established the age of deposits filling the Kleszczów Graben as Neogene, the main coal seam as late Miocene, and the overburden deposits as late Miocene-Pliocene (Stuchlik et al, 1990). Palaeobotanical investigations of the assemblages of plant macroremains from the Bełchatów Lignite Mine were then continued (Wójcicki and Zastawniak, 1998;Worobiec and Lesiak, 1998;Otto et al, 2001;Worobiec, 2003b;Worobiec and Worobiec, 2005;Worobiec, 2007;Worobiec and Szynkiewicz, 2007;Worobiec et al, 2012;Worobiec, 2014;Worobiec and Szynkiewicz, 2016;. Besides fossil plant remains, fossil insects (Wegierek, 1995), snails (Stworzewicz and Szynkiewicz, 1988;Stworzewicz, 1995), freshwater fishes (Jerzmańska and Hałuszczak, 1986), and mammals (Kowalski, 1993;Rzebik-Kowalska and Kowalski, 2001; Kowalski and Rzebik-Kowalska, 2002) preserved in the Neogene infilling of Kleszczów Graben were investigated.…”