In contrast to the revision by Lucas and Sobus and that P. prohorovi did not belong in Paraceratherium .
Lucas and Sobus is a 2003 paper by Chinese researchers suggested that Indricotherium and Dzungariotherium were valid genera .
In contrast to the revision by Lucas and Sobus , a 2003 paper by Chinese researchers suggested that Indricotherium and Dzungariotherium were valid genera , and that P. prohorovi did not belong in Paraceratherium .