| Study | Rontal | McQueen | Danko | Hwang | Karakas | Huanmanop | Nitek | Ji | Abed | Abed | Munguti | Fetouh | Nitek (present study) |
| Specimens | Dry skulls | Cadavers | Cadavers | Dry skulls | Dry skulls | Dry skulls | Dry skulls | CT | Cadavers | Cadavers | ? | Dry skulls | CT |
| Number | 48 | 54 | 16 | 82 | 62 | 100 | 189 | 64 | 47 | 47 | ? | 104 | 100 |
| Date | 1979 | 1995 | 1998 | 1999 | 2002 | 2007 | 2009 | 2010 | 2011 | 2012 | 2012 | 2014 | 2015 |
| Ethnicity | Indian | US | US | Korean | Male Turkish | Thai | Caucasian medieval | Chinese | Caucasian | British Caucasian | Kenyan | Egyptian | Caucasian |
| Measured distances | | | | | | | Male | Female | Male | Female | | | Male | Female | Male | Female | Male | Female |
| Medial quadrate | ALC-OC | 42 | 43,29 | 44,1 | 40,5 | 41,7 | 42,2 | 42,30 | 39,97 | 46,43 | 44,41 | NA | 43,77 | NA | NA | 47,25 | 46,21 | 40,40 | 38,39 | ALC-AEF | 24 | 21,96 | NA | 21 | 23,9 | 23,5 | 22,80 | 21,59 | NA | NA | NA | 25,61 | NA | NA | 26,76 | 26,17 | 21,28 | 20,55 | ALC-PEF | 36 | 33,36 | NA | 31,7 | 35,6 | 36 | 34,42 | 32,28 | NA | NA | NA | 36,09 | NA | NA | 35,39 | 35,26 | 33,06 | 31,80 |
| Inferior quadrate | Infraorbital foramen-OC | 48 | 49,73 | 39,4 | 45,5 | NA | 46,2 | 49,33 | 46,59 | 47,93 | 46,18 | 43,23 | NA | 55,18 | 53,63 | 51,76 | 50,53 | 45,24 | 42,79 | Infraorbital foramen to FOI | 24 | 37,43 | NA | 21,6 | NA | 21,7 | 24,62 | 22,55 | NA | NA | 25,4 | NA | 23,56 | 22,28 | 24,62 | 23,6 | 23,33 | 20,85 |
| Superior quadrate | Supraorbital foramen-OC | 40 | 44,34 | 44,5 | 44,9 | 45,3 | 44,7 | 48,57 | 45,60 | 52,93 | 50,89 | NA | NA | 53,25 | 51,93 | 49,64 | 48,16 | 46,49 | 43,29 | Supraorbital foramen to SOF | 35 | 36,59 | NA | 40 | NA | 40 | 44,27 | 41,16 | NA | NA | NA | NA | NA | NA | 46,23 | 45,26 | 42,32 | 39,39 |
| Lateral quadrate | FZS-OC | 43 | 47,1 | 38,3 | 47,4 | 44,9 | 46,9 | 48,30 | 45,67 | 48,38 | 46,91 | NA | NA | NA | NA | 44,25 | 43,58 | 46,15 | 43,58 | FZS-SOF | 35 | 36,59 | NA | 34,3 | NA | 34,5 | 36,88 | 33,82 | NA | NA | NA | NA | NA | NA | 39,94 | 39,12 | 34,06 | 32,62 | FZS-IOF | 25 | 40,92 | NA | 24,8 | NA | 24 | 29,42 | 27,83 | NA | NA | NA | NA | NA | NA | 29,08 | 27,32 | 24,62 | 23,46 |
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