Fossil records of Rhinoceroses (Rhinocerotoidea Gray, 1821), Chalicotheres (Chalicotherioidea Gill, 1872) and Brontotheres (Brontotherioidea (Marsh, 1873) (Peryssodactyla Owen, 1848 - Mammalia Linnaeus, 1758) in Bulgaria

The fossil record of the Rhinoceroses, Chalicotheres and Brontotheres in Bulgaria covers 34 taxa from a total of 53 localities dated from the Oligocene to the Late Pleistocene: Rhinocerotoidea (27 taxa), Chalicotherioidea (5), and Brontotherioidea (2). Most widely spread were Aceratherium incisivum (established in 15 localitiees), Dihoplus schleiermacheri (13), Coelodonta antiquitatis (6), and Ancylotherium pentelicum (5). The majority of the localities (27) are concentrated along the largest Bulgarian rivers - Struma (14 localities), Iskar (6). Maritsa (5), and Mesta (2), as well as the Sofia Valley (9) and the Burgas lowland (3).