The suprainiac fossa is an elliptical depression on the occiput above the superior nuchal line, or inion, or a dent in the back of the head. Suprainiac fossae were common anatomical features of Neanderthals but are rare in modern Humans.[1][2]
^Hershkovitz, Israel; Marder, Ofer; Ayalon, Avner; Bar-Matthews, Miryam; Yasur, Gal; Boaretto, Elisabetta; Caracuta, Valentina; Alex, Bridget; Frumkin, Amos; Goder-Goldberger, Mae; Gunz, Philipp; Holloway, Ralph L; Latimer, Bruce; Lavi, Ron; Matthews, Alan; Slon, Viviane; Mayer, Daniella Bar-Yosef; Berna, Francesco; Bar-Oz, Guy; Yeshurun, Reuven; May, Hila; Hans, Mark G; Weber, Gerhard W; Barzilai, Omry (2015). "Levantine cranium from Manot Cave (Israel) foreshadows the first European modern humans". Nature. 520 (7546): 216–9. doi:10.1038/nature14134. PMID25629628.
^Nowaczewska, Wioletta (2011). "Are Homo sapiens nonsupranuchal fossa and neanderthal suprainiac fossa convergent traits?". American Journal of Physical Anthropology. 144 (4): 552–63. doi:10.1002/ajpa.21437. PMID21404232.