ABSTRACT Here we describe mandibular, dental, and postcranial remains referable to Rhinocerotidae and Chalicotheriidae (Perissodactyla) originating from the vertebrate localities of Kucukcekmece East and Kucukcekmece West, in Thrace (European Turkey). The four rhinocerotids recognized comprise the early diverging Ronzotherium sp. (one lower molar, reworked from Oligocene deposits; Kucukcekmece West), the two-horned rhinocerotine Ceratotherium neumayri (Osborn, 1900), and two small chilothere aceratheriines: Chilotherium schlosseri (Weber, 1905) and Persiatherium sp. A chalicotheriine chalicotheriid, Kalimantsia sp., is documented by two tooth fragments and an unfused second phalanx of undoubtful affinities in Kucukcekmece West. This occurrence substantiates the record of Kalimantsia, previously restricted to the type locality Kalimantsi-Pehsata, in SW Bulgaria, and allows notably for the first recognition of postcranial remains for this taxon. Although distinct in terms of taxonomic composition and relati...