Erketu is also diagnosed by bifurcate anterior cervical neural spines, another unusual trait for a titanosauriform. The preserved cervicals include the atlas, axis and C3 to C9, however, the sixth is missing, giving a total of eight preserved cervical vertebrae.
The description highlights that Erketu possesses a unique feature: bifurcate anterior cervical neural spines, which are uncommon in titanosauriform dinosaurs. The presence of the atlas, axis, and C3 through C9 vertebrae is significant, but the absence of the sixth vertebra contributes to the total count of eight preserved cervical vertebrae.