Table 5. Measurements of the caudal vertebrae of Huabeisaurus allocotus (HBV-20001) from the Upper Cretaceous of China.
| Cd | CL | ACH | ACW | PCH | PCW | DFA | DFP | NAH | PRE | NSH | NSL | NSW | CRW |
| 1 | 126 | 250 | 232 | 253 | 268 | ∼0 | 29 | ∼62 | ∼0 | 303 | 99 | 158 | 177# |
| 2 | 132 | 270 | 241 | 254 | 250 | 22 | 40 | 87 | ∼0 | 270 | 76 | 139 | 350 |
| 3 | 154 | – | – | 254 | 270 | – | – | – | – | – | – | – | – |
| 4 | 159 | 255 | 237 | 243 | 241 | 24 | 55 | 56 | 23 | 290 | 75 | 91 | 225# |
| 5 | 154 | 213 | 190 | 224 | 186 | 27 | 50 | – | – | – | – | – | – |
| 6 | 154 | 197 | 161 | 173 | 173 | – | 65 | – | 35 | – | – | – | 136# |
| 7 | 161 | 172 | 151 | 167 | 142 | – | 67 | 100 | 55 | – | – | – | – |
| 8 | 162 | – | 127 | 171 | 138 | – | 51 | 68 | – | – | – | – | – |
| 9 | 156 | 141 | 122* | 165 | 131 | 10 | 60 | 53 | 63 | 155* | – | – | – |
| 10 | 147 | 155 | 119 | 169 | 122 | 10 | 67 | – | 51 | – | – | – | – |
| 11 | 150 | 151 | 128* | 161 | 134 | 20 | 50 | – | 48 | 146 | 121 | 29 | – |
| 12 | 146 | 159 | 117* | 138 | 112* | – | 45 | – | – | – | 103 | 33 | – |
| 13 | 149 | 142 | – | 149 | – | 22 | 54 | – | 40 | – | – | – | – |
| 14 | 139 | 143 | 123 | 150 | – | 20 | 55 | 52 | 48 | – | – | – | – |
| 15 | 147 | 150 | 119 | 145 | 104 | 23 | 60 | 51 | 46 | – | – | – | – |
| 16 | 156 | 137 | 121 | 141 | 131 | – | 59 | – | 45 | – | – | – | – |
| 17 | 154 | 136 | – | 139 | 110 | – | 62 | 49 | 43* | – | – | – | – |
| 18 | 161 | 120 | 112 | 130 | 103 | 20 | 65 | 36 | 43 | 110 | 111 | 41 | – |
| 19 | 158 | 118 | 101 | 120 | 106 | 30 | 66 | 43 | 24 | 90 | 135 | 30 | – |
| 20 | 158 | 118 | 97 | – | 104 | 25 | 63 | 43 | 26 | 83 | 132 | 26 | – |
| 21 | 160 | 109 | 96 | 110 | 101 | 30 | 58 | 39 | 34 | – | – | – | – |
| 22 | 165 | 98 | 93 | 101 | 98 | 20 | 56 | 35 | – | 97 | ∼108 | 39 | – |
| 23 | – | – | – | – | – | – | – | – | – | 68 | 122 | 38 | – |
| 24 | 96 | 73 | 68 | 59 | 71 | 14 | 10 | 29 | 19 | 57 | – | 39 | – |
| 28 | 105 | 60 | 68 | 66 | 72 | 10 | 41 | 20 | – | – | 85 | 25 | – |
| 29 | 86 | 61 | 66 | 58 | 62 | 22 | 38 | – | – | – | – | – | – |
| 30 | 78 | 59 | 70 | 59 | 65 | 19 | 43 | 18 | – | – | – | – | – |
Vertebrae 25–27 are excluded due to their poor preservation. Abbreviations: CL, centrum anteroposterior length; ACH, anterior surface of centrum dorsoventral height; ACW, anterior surface of centrum mediolateral width; PCH, posterior surface of centrum dorsoventral height; PCW, posterior surface of centrum mediolateral width; DFA, distance from anterior end of centrum to anterior end of neural arch; DFP, distance from posterior end of centrum to posterior end of neural arch; NAH, neural arch height (measured from dorsal surface of centrum up to the base of the postzygapophyses); PRE, extent of prezygapophyses beyond the anterior margin of the centrum; NSH, neural spine height (measured upwards from the base of the postzygapophyses); NSL, neural spine maximum anteroposterior length; NSW, neural spine maximum mediolateral width; CRW, caudal ribs mediolateral width (measured across the distal tips of the caudal ribs). A hash sign (#) denotes a CRW measurement based on only one caudal rib (measured from distal tip of caudal rib to midline of vertebra). An asterisk (*) denotes a measurement based on an incomplete element. Note that all centrum height measurements exclude chevron facets and centrum length measurements exclude the posteroventral expansion present in the anterior and middle caudal vertebrae. All measurements are in millimeters.