Table 4.

Measurements (in millimetres) of the vertebrae of Fucaia buelli. Holotype, UWBM 84024. Dimensions are maxima, in dorsoventral, anteroposterior or mediolateral planes, unless stated. For bilateral measurements, the more complete side is used, as stated.

atlas
 height, tip of neural spine to ventral margin of hypapophysis74.89
 transverse width, including transverse processes107.75
 anteroposterior length, measured along ventral border19.79
 height of neural canal sensu lato, including fovea dentis35.09
 width of neural canal36.03
 height of articular facet for occipital condyle, right43.07
 width of articular facet for occipital condyle, left20.09
 bilateral width of articular facet for occipital condyles, crest to crest73.28
 height of articular facet for axis25.74
 bilateral width of articular facets for axis, crest to crest65.92
 height of transverse process26.92
 height of spinous process, as preserved14.93
axis
 height, tip of neural spine to ventral margin of hypapophysis85.56
 transverse width, left transverse process to midline x289.86b
 anteroposterior length, ventrally35.34
 height of neural canal, posteriorly18.35
 width of neural canal, posteriorly27.21
 width of posterior epiphysis34.98
 height of posterior epiphysis, including hypapophysis in midline33.10
 width across margins of atlantal facets, left side to approximate midline x266.88b
C3
 height, tip of neural spine to ventral margin of hypapophysis, neural spine possibly missing58.34
 transverse width, left transverse process to midline x295.76b
 anteroposterior length, ventrally, including hypapophysis16.08
 height of neural canal, posteriorly14c
 width of neural canal, posteriorly23c
 width of posterior epiphysis34.02
 height of posterior epiphysis, including hypapophysis in midline36.79
 maximum dimension of vertebrarterial canal, left11.49
C4
 height, lacks neural arch55.25c
 transverse width, right transverse process to midline x273.32b
 anteroposterior length, ventrally, including hypapophysis16.27
 anteroposterior length, ventrally, adjacent to hypapophysis15.31
 height of neural canal, taken posteriorly11.30c
 width of neural canal, taken posteriorly, right pedicle to midline x231.46b
 width of posterior epiphysis33.03
 height of posterior epiphysis, including hypapophysis in midline39.47
 maximum dimension of vertebrarterial canal, right17.35
C5
 height, damaged neural arch55.88c
 transverse width, left transverse process to midline x2106.00b
 anteroposterior length, ventrally, including hypapophysis16.65
 anteroposterior length, ventrally, adjacent to hypapophysis16.14
 height of neural canal, arch lost in midline16.50c
 width of neural canal, posteriorly, left pedicle to midline x234.80b
 width of posterior epiphysis34.19
 height of posterior epiphysis38.85
 maximum dimension of vertebrarterial canal17.31
C6
 height, damaged neural arch53.60c
 transverse width, left transverse process to midline x2105.80b
 anteroposterior length, ventrally17.42
 height of neural canal, arch lost in midline12.63c
 width of neural canal, posteriorly, left pedicle to midline x240.64
 width of posterior epiphysis37.44
 height of posterior epiphysis37.89
 maximum dimension of vertebrarterial canal19.44
C7
 height, crushed neural arch58.00c
 transverse width, left transverse process to midline x294.06
 anteroposterior length, ventrally18.89
 height of neural canal, crushed neural arch14.20c
 width of neural canal, posteriorly, crushed neural arch
 width of posterior epiphysis, distorted37.60
 height of posterior epiphysis34.14c
T1
 height, incomplete neural spine58.93
 transverse width, left transverse process to midline x275.32b
 anteroposterior length, ventrally20.33
 height of neural canal, crushed neural arch15.56c
 width of neural canal, posteriorly, left neural pedicle broken30.50
 width of anterior epiphysis, posterior damaged35.34a
 height of anterior epiphysis33.58
T2
 height, incomplete neural spine
 transverse width, right transverse process to midline x280a
 anteroposterior length, ventrally23.65
 height of neural canal, crushed neural arch
 width of neural canal, posteriorly, left neural pedicle broken28.25c
 width of anterior epiphysis, posterior damaged33.90a
 height of anterior epiphysis30.33a
T3
 height, incomplete neural spine
 transverse width64.80c
 anteroposterior length, ventrally25.40
 height of neural canal, crushed neural arch
 width of neural canal, posteriorly, pedicles damaged29.90a
 width of posterior epiphysis40a
 height of posterior epiphysis30.03
T4
 height, incomplete neural spine57.26c
 transverse width, left transverse process to midline x288b
 anteroposterior length, ventrally27.77
 height of neural canal, anterior, posterior crushed15.02
 width of neural canal, crushed, pedicles deformed24.20
 width of posterior epiphysis40a
 height of posterior epiphysis30.80a
T5
 height114.40
 transverse width, left transverse process to midline x280.44b
 anteroposterior length, ventrally28.79
 height of neural canal, posterior, anterior deformed18.40a
 width of neural canal, pedicle damaged26.60a
 width of posterior epiphysis41.21a
 height of posterior epiphysis31.88
T6
 height121.26
 transverse width, left transverse process to midline x275.2a
 anteroposterior length, dorsally (ventral eroded)25.9a
 height of neural canal, anterior, posterior deformed17.74
 width of neural canal, pedicle damaged27.16
 width of anterior epiphysis32.83
 height of anterior epiphysis30.71
  • aEstimated measurement.

  • bThe measurements are made from one side to the midline of the skull and multiplied by two.

  • cLoss of part of a feature, so that the dimension is normally a minimum.