Cistecephalid Cranial Measurements Taxon/specimen Dorsal skull length Intertemporal (cm) width, anterior (cm) Intertemporal width, posterior (cm) Proportional width, anterior Proportional width, posterior Length from pineal foramen to occiput (cm) Proportional length of postpineal skull Cistecephaloides 6.286 5.089 6.716 0.809576837416481 1.06840598154629 GPIT K52 3.469 2.027 3.791 0.584318247333526 1.09282213894494 N/A N/A GPIT K55a 3.164 1.671 2.997 0.528128950695322 0.947218710493047 N/A N/A GPIT K55b 3.498 1.840 3.454 0.526014865637507 0.987421383647799 N/A N/A GPIT K55c 2.757 1.815 3.074 0.658324265505985 1.11498005077983 N/A N/A GPIT K56 3.444 2.040 3.380 0.592334494773519 0.981416957026713 N/A N/A 0.577824164789172 1.02477184817847 N/A N/A SAM-PK-6243 0.414 0.0658606426980592 Kawingasaurus mean Zambian taxon BP/1/3337 6.354 3.747 5.576 0.589707271010387 0.877557444129682 0.672 NHCC LB18 4.496 2.531 4.128 0.562944839857651 0.918149466192171 0.189 0.0420373665480427 NHCC LB19 5.635 3.448 5.229 0.611889973380657 0.927950310559006 0.274 0.0486246672582076 0.588180694749565 0.90788574029362 mean 0.10576015108593 0.0654740616307268 Sauroscaptor ISI R208 5.163 2.194 3.097 0.42494673639357 0.599845051326748 0.266 0.0515204338562851 ISI R210 4.668 2.600 3.325 0.556983718937446 0.712296486718081 0.134 0.0287060839760069 mean 0.490965227665508 0.656070769022414 0.040113258916146 Cistecephalus AM 4946 5.139 3.231 4.719 0.628721541155867 0.918272037361354 AMNH FARB 5318 4.545 3.377 4.681 0.743014301430143 1.02992299229923 ? BP/1/31 6.657 4.925 7.170 0.739822742977317 1.07706173952231 1.241 0.186420309448701 BP/1/33 5.532 3.720 5.256 0.672451193058568 0.950108459869848 1.050 0.189804772234273 BP/1/154 4.383 2.939 3.922 0.670545288615104 0.894820898927675 0.795 0.181382614647502 BP/1/260 7.229 5.984 8.106 0.827777009268225 1.12131691796929 ? BP/1/506 5.551 4.012 5.508 0.722752657178887 0.992253647991353 0.969 0.174563141776257 BP/1/580 5.203 4.204 5.833 0.807995387276571 1.12108399000577 0.857 0.164712665769748 BP/1/586 3.715 2.370 3.627 0.637954239569314 0.976312247644684 0.786 BP/1/1526 5.979 3.590 6.070 0.600434855326978 1.01521993644422 BP/1/2445 4.365 2.696 4.332 0.617640320733104 0.992439862542955 0.833 0.190836197021764 BP/1/2915 5.064 3.340 4.652 0.65955766192733 0.918641390205371 1.062 0.209715639810427 BP/1/4024 4.897 3.147 5.180 0.64263835001021 1.05779048396978 0.813 0.166020012252399 BP/1/4096 6.281 4.351 7.088 0.692724088520936 1.12848272568062 1.421 0.226237860213342 BP/1/4111 4.410 3.395 5.259 1.19251700680272 0.787 0.178458049886621 BP/1/4114 6.107 4.362 6.825 0.714262321925659 1.11757000163747 1.215 0.198952022269527 BSPG 1932-I-56 4.501 3.136 3.881 0.696734059097978 0.862252832703843 0.906 MB.R.1001 4.954 3.723 4.739 0.751513928138878 0.956600726685507 0.841 0.169761808639483 RC 80 6.272 5.031 7.238 0.802136479591837 1.15401785714286 1.431 0.228156887755102 RC 289 6.020 3.997 6.933 0.663953488372093 1.046 SAM-PK-10665 4.322 2.437 3.300 0.563859324386858 0.763535400277649 0.987 0.228366496992133 SAM-PK-K1686 5.153 3.641 4.715 0.706578692024064 0.915000970308558 1.206 0.234038424218902 0.76984126984127 1 1.15166112956811 1.082 0.21054679898813 ? ? 0.21157469717362 1 0.167252048837598 0.20128860253277 0.17375415282392 Taxon/specimen Dorsal skull length Intertemporal (cm) width, anterior (cm) Intertemporal width, posterior (cm) Proportional width, anterior Proportional width, posterior Length from pineal foramen to occiput (cm) Proportional length of postpineal skull SAM-PK-K6753 6.113 4.503 6.191 0.736626860788483 1.01275969245869 1.274 0.208408310158678 SAM-PK-K6814 6.289 4.178 1.097 0.664334552393067 0.17443154714581 1.097 SAM-PK-K7852 4.774 2.736 4.055 0.573104315039799 0.84939254294093 0.803 0.168202764976959 SAM-PK-K8304 5.570 4.060 6.144 1.143 0.205206463195691 UCMP 42679 5.132 3.525 4.779 0.686866718628215 0.931215900233827 0.981 0.191153546375682 UCMP 42684 4.501 3.556 5.093 1.13152632748278 1.074 0.238613641413019 UCMP 42802 8.371 7.006 9.037 0.836937044558595 1.07956038705053 1.420 0.169633257675308 USNM 22942 5.934 3.504 5.002 0.590495449949444 0.84293899561847 1.103 mean 0.729 0.7900466562986 1.10305206463196 0.698007521516006 0.981058690437472 Institutional abbreviations: AM (Albany Museum, Grahamstown); AMNH (American Museum of Natural History, New York); BP (Evolutionary Studies Institute, Johannesburg); BSPG (Bayerische Staatssammlung für Paläontologie und Geologie); GPIT (Paläontologische Sammlung, Tübingen); ISI (Indian Statistical Institute, Kolkata); MB (Museum für Naturkunde, Berlin); NHCC (National Heritage Conservation Commission, Lusaka); RC (Rubidge Collection, Wellwood); SAM (Iziko Museums of South Africa, Cape Town); UCMP (University of California Museum of Paleontology, Berkeley); USNM (National Museum of Natural History, Washington, D.C.) 2 0.17443154714581 0.18587799123694 0.194048954481082
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