Editing Gigantopithecus (section)

===Size===
Total size estimates are highly speculative because only tooth and jaw elements are known. Molar size and total body weight do not always correlate, such as in the case of [[postcanine megadontia]] hominins (small-bodied primates exhibiting massive molars and thick enamel).<ref name= "Olejniczak2008"/> Still, ''Gigantopithecus'' is normally reconstructed as the biggest primate ever recorded.<ref name="NAT-20240110"/>
*In 1946, Weidenreich hypothesised that ''Gigantopithecus'' was twice the size of male gorillas.<ref name=Weidenreich1946/>
*In 1957, Pei estimated a total height of about {{convert|12|ft|abbr=in|order=flip}}.<ref name=Johnson1979/>
*In 1970, Simons and American palaeontologist Peter Ettel approximated a height of almost {{convert|9|ft|abbr=in|order=flip}} and a weight of up to {{convert|600|lb|abbr=in|order=flip}}, which is about 40% heavier than the average male gorilla.<ref name=Johnson1979/>
*In 1978, David P. Willoughby estimated a height of {{cvt|1.85|m|0}} and a weight of {{cvt|250|kg}}.<ref>{{Cite book |last=Willoughby |first=David P. |title=All about Gorillas |year=1978 |publisher=A. S. Barnes |isbn=9780498018459 |pages=50}}</ref>
*In 1979, American anthropologist Alfred E. Johnson Jr. used the dimensions of gorillas to estimate a [[femur]] length of {{cvt|54.4|cm|ftin|0}} and [[humerus]] length of {{cvt|62.7|cm|ftin|0}} for ''Gigantopithecus'', about 20–25% longer than those of gorillas.<ref name=Johnson1979>{{cite journal|first=A. E. Jr. |last=Johnson |year= 1979 |title= Skeletal Estimates of ''Gigantopithecus'' Based on a Gorilla Analogy|journal=Journal of Human Evolution|volume=8|issue=6|pages=585–587|doi=10.1016/0047-2484(79)90111-8|bibcode=1979JHumE...8..585J }}</ref>
*In 2017, Chinese palaeoanthropologist Yingqi Zhang and American anthropologist Terry Harrison suggested a body mass of {{convert|200|-|300|kg|abbr=in}}, though conceded that it is impossible to obtain a reliable body mass estimate without more complete remains.<ref name= ZhangHarrison2017/>
*In 2019, R. J. Hawley from the [[Tate Geological Museum]] wrote that it is unreasonable to reconstruct ''Gigantopithecus'' with bipedal standing height over {{cvt|230|cm|ftin|0}}.<ref>{{Cite journal |last1=Gayford |first1=Joel H. |last2=Engelman |first2=Russell K. |last3=Sternes |first3=Phillip C. |last4=Itano |first4=Wayne M. |last5=Bazzi |first5=Mohamad |last6=Collareta |first6=Alberto |last7=Salas-Gismondi |first7=Rodolfo |last8=Shimada |first8=Kenshu |date=2024 |title=Cautionary tales on the use of proxies to estimate body size and form of extinct animals |journal=Ecology and Evolution |language=en |volume=14 |issue=9 |pages=e70218 |doi=10.1002/ece3.70218 |issn=2045-7758 |pmc=11368419 |pmid=39224151|bibcode=2024EcoEv..1470218G }}</ref> 

The average maximum length of the upper [[canine tooth|canines]] for presumed males and females are {{convert|21.1|mm|abbr=in|frac=4}} and {{convert|15.4|mm|abbr=in|frac=2}}, respectively, and Mandible III (presumed male) is 40% larger than Mandible I (presumed female). These imply [[sexual dimorphism]], with males being larger than females. Such a high degree of dimorphism is only surpassed by gorillas among modern apes in canine size, and is surpassed by none for mandibular disparity.<ref name= ZhangHarrison2017/>