At present 5 species have been identified from several localities in Europe and Asia, spanning the Late Eocene to Upper Oligocene (37 - 23 million years ago).

[2] The genus was similar in weight to the extant black rhinoceros although with an overall more slender and gracile build, with a long humerus and femur in comparison to other rhinocerotids.

[4] Isotope analysis of teeth discovered at Rickenbach in Switzerland has shown that european Ronzotherium species were adapted to the increasingly drier climate and open landscapes of the post-grande coupure Oligocene.

[3] Fossil rhinocerotid trackways assigned to the ichnotaxon Rhinoceripeda voconsense (Vialov 1966) have been discovered at two sites in the Luberon Natural Regional Park in southeast France.

The trackways are preserved in the Calcaires de La Fayette, a calcareous lacustrian deposit dating to the lower Rupelian, and are exposed at Saignon and Viens.

[7] In the United Kingdom rare isolated teeth and bone fragments, attributed to Ronzotherium romani, have been found from the Rupelian aged Bouldnor Formation on the Isle Of Wight.

At Saint-Henri and Saint-Andre in the north of the city 50 fragments of bone and dentition have been recovered, including a mandible and semi-intact upper jaw [9] The Espenhain mines in Saxony have produced a series of Ronzotherium teeth.

The locality, south of Leipzig, exposes the Bohn Formation, a predominantly marine sequence of Rupelian age that has preserved a rich terrestrial fauna of post-grande coupure mammals.