from the vertebra) that is almost as tall as the centrum, truncated in a square shape at the top, and located far back. Phosphatodraco is also distinct in that the ratio between the maximum length of the vertebrae and the front width between prezygapophyses (processes at the sides of the centrum which connected with the postzygapophyses of the previous vertebrae) of the middle cervical vertebrae is about 4.3 in C5 and 4.1 in C6. The five preserved cervical vertebrae have hollow centra and their cortical bone (the outer, thick layer) is about thick. The vertebrae vary in length, the longest being the frontmost of those preserved, a C5 broken in two according to Pereda-Suberbiola and colleagues (C3–C4 according to Kellner), which they estimated to have been about long when complete. The first of these fragments is , the second is about . When viewed from the side, the hind end of this vertebra shows a developed left postzygapophysis, and the convex articular condyle (the condyle that connected with the following vertebra) and left postexapophysial process (which connected with the preexapophys at the front of the preceding vertebra) is in front of it, all lying in the same plane due to crushing. The C6 (Kellner's C5) is the best-preserved of the vertebrae, and is shorter than the preceding C5, about long. It is distorted so that the front part is visible in lower side view, and the hind part is visible in left side view. Its centrum is procoelous (concave at the front surface), its prezygapophyses are horn-like, and nearly concave and parallel when seen from below. The right prezygapophys has a small tubercle (a rounded projection) at the midline, and there is no indication of additional processes at the front end of the vertebra or pneumatic foramina (holes) on the side surface of the centrum. The front cotyle (the concave front end of the centrum) is distorted, but it appears to be twice as wide as high, ovoid (or egg-shaped), and with a slightly concave upper margin. The lower margin has a prominent hypapophysis (a downwards projection), and this keel's height diminishes towards the centrum's mid-length. There is a longitudinal oval sulcus (a groove) on the right side of the lower surface, near the base of the prezygapophysis. The lower surface of the centrum is nearly flat, and the postexapophys is well-developed at the lower side of the condyle, like