APPENDIX

Table of all data used in the analyses. All measurements are in mm. AMNH = American Museum of Natural History, New York; MPC/D = Mongolian Paleontological Centre, Ulan Baator.

Source Specimen Number Skull length total Skull length basal Frill length Frill width Jugal boss width Orbit length Orbit height Frill minimum Frill maximum

Dodson, 1976

AMNH 6419 115 76 51.5 67 71 26.5 26.2 NA NA

Dodson, 1976

AMNH 6434 190 123 90.9 NA NA 34.1 20 NA NA

Dodson, 1976

AMNH 6430 NA 137 NA NA NA 37.1 30 NA NA

Dodson, 1976

AMNH 6251 NA 140 NA NA NA 43.7 42.4 NA NA

Dodson, 1976

AMNH 6431 259 150 146 185 162 44.4 31.9 NA NA

Dodson, 1976

AMNH 6486 281 150 125 NA 170 50.7 35.3 NA NA

Dodson, 1976

AMNH 6432 168 92.3 80.8 NA 200 43.5 NA NA NA

Dodson, 1976

AMNH 6428 170 90 57.6 NA NA 32.4 30.3 NA NA

Dodson, 1976

AMNH 6409 304 191 193 387 295 47.6 55 NA NA

Dodson, 1976

AMNH 6480 NA 200 NA NA 225 NA 54 NA NA

Dodson, 1976

AMNH 6444 340 210 191 374 325 51.1 40.6 NA NA

Dodson, 1976

AMNH 6485 NA 229 NA NA NA 52.5 52.7 NA NA

Dodson, 1976

AMNH 6408 314 235 152 242 233 54.4 54.6 NA NA

Dodson, 1976

AMNH 6433 410 261 178 NA NA 62.5 57.8 NA NA

Dodson, 1976

AMNH 6429 408 169 208 333 399 70.2 70.8 NA NA

Dodson, 1976

AMNH 6439 348 271 202 NA NA 62.5 61 NA NA

Dodson, 1976

AMNH 6441 NA 272 NA NA NA 58.3 41.5 NA NA

Dodson, 1976

AMNH 6477 490 303 265 NA NA 63.8 59.3 NA NA

Dodson, 1976

AMNH 6417 NA NA 182 375.5 373 NA 40.4 NA NA

Dodson, 1976

AMNH 6425 469 313 264 471 360 70.2 79 NA NA

Dodson, 1976

AMNH 6413 421 314 234 525 360 75.7 58.2 NA NA

Dodson, 1976

AMNH 6414 461 341 249 490 400 77.6 72.6 NA NA

Dodson, 1976

AMNH 6438 NA 352 NA NA NA 87.5 94 NA NA

Dodson, 1976

AMNH 6466 491 357 262 465 458 78.3 75 NA NA

Dodson, 1976

AMNH 6467 515 285 257.5 445 358 61.1 61.3 NA NA

Handa et al., 2012

MPC/D 100/539 NA 185.5 NA NA 191.5 53 48 NA NA

Hone et al., 2014a

MPC/D 100/534 285.5 145.5 138.5 240 159 38.5 47 NA NA

Hone et al., 2014a

MPC/D 100/526 B 128 79 49 52.5 44 31 23 23 53.5

Hone et al., 2014a

MPC/D 100/526 C 125 91.5 33.5 NA NA 25.5 28.5 24 53

Fastovsky et al., 2011

MPC/D 100/530 a 41.4 26 15.5 22 22 14.5 NA 13 16

Fastovsky et al., 2011

MPC/D 100/530 b 41 23.5 17 25 26 11 NA 14 17.5

Fastovsky et al., 2011

MPC/D 100/530 c 35 NA 15.5 19 NA 10.5 NA 14 18

Fastovsky et al., 2011

MPC/D 100/530 d 46.5 29.5 16 24 NA 14 10.5 14 17

Fastovsky et al., 2011

MPC/D 100/530 e 39.5 28 12 23.5 NA 12.5 9.5 13 10

Fastovsky et al., 2011

MPC/D 100/530 f 51 33.5 16.5 25.5 41 17 11 16.5 13.5

Fastovsky et al., 2011

MPC/D 100/530 g 40.5 32 12 21 NA 15 10 13.5 15

Fastovsky et al., 2011

MPC/D 100/530 h 35 27 12 22.5 NA 12 8.5 12.5 13.5