Ratio of the length of the forearm (the radius) divided by the length of the upper arm (the humerus), 100. Because Neandertals possessed relatively short forearms, this index is one of the criteria used to differentiate that group from AMHs.
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brachial (Of or pertaining to the arm; for example, brachial blood vessels serve the arm.)
simotic index (... their root. See frontal index, premaxillary index, rhinial index.)
diversity index (... . Examples are the ShannonWeiner index, richness index, Brillouin index, and Simpson index.)
frontal index (... the nasion. See premaxillary index, rhinial index, simotic index.)