One of the dorsal vertebrae (MNHN GDF 358) measured  in  length, which is equal to the largest known vertebrae of Spinosaurus maroccanus. The preserved base of one of Cristatusauruss vertebral neural spines (MNHN GDF 359) was  thick in comparison to the  measurement seen in an equivalent Spinosaurus vertebra, indicating that Cristatusauruss neural spines were probably not as tall as those of Spinosaurus.
A dorsal vertebra from MNHN GDF 358 measured in length and equaled the largest known vertebrae of Spinosaurus maroccanus. The preserved base of a Cristatusauruss vertebral neural spine (MNHN GDF 359) was thicker than anticipated, suggesting that Cristatusauruss neural spines were probably not as tall as those of Spinosaurus.