Otoliths from the type locality of the Sand of Berg (Middle Oligocene) at Berg, Belgium

11 species are listed from the type locality of the Sands of Berg (Rupelian) at Berg, Belgiun. Three new species were found, viz. Onos bergensis, Sebastes weileri and Eucitharus belgicus. It is the first time that the genus Sebastes has been found in the fossil record. The fauna is poor in species and lived without a doubt in shallow marine waters very close to the coast. The otoliths of the Sands of Berg do not contradict an age of Middle Oligocene for this formation, which had already been deduced from other fossil groups, such as mollusca.