While it retains some basal traits, the teeth possess features which point toward it being relatively derived.

There are other small brontotheres from the Eocene of Asia such as Microtitan, Pygmaetitan, and Protitan though morphological evidence does not support a monophyletic relationship between them.

Morphological analysis tends to put Nanotitanops in a polytomy near the node of the subfamily Brontotheriinae.

[1] This genus is only described from the astoundingly rich middle Eocene fissure-filling near the village of Shanghuang in southern Jiangsu Province, China.

mongoliensis, a species known from the Irdin Manha Formation of the Nei Mongol Autonomous Region of China.