11. Additionally the neural spine base is transversely constricted. 12. The neural spines are thin and angled posteriorly. 13. Its vertebrae had tall neural spines that formed a " sail " along its back. 14. Its middle tail vertebrae's neural spines angled anteriorly when the vertebrae are aligned. 15. Stromer speculated that males and females may have differed in the size of the neural spine . 16. The centra and neural spines show early hints of hollowing as a weight-saving measure. 17. These vertebrae are characterized by a low neural spine , and subdivided paradiapophysis and thin zygosphen. 18. The caudal neural spines in contrast are lower than they are wide and have rounded tips. 19. The cervical vertebrae of the neck had broad neural spines that increased in height towards the body. 20. In the front tail vertebrae, the tops of the neural spines are rounded instead of bifurcated.
