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==Morphology and taxonomy==
The
Anthropologist [[Chris Stringer]] argued in a 2003 article in the journal ''Nature'' that "the skulls might not be distinctive enough to warrant a new subspecies name".<ref>{{Cite journal |title= Human evolution: Out of Ethiopia |journal= Nature |volume= 423 |issue= 6941 |pages= 693–695 |date=June 12, 2003 |bibcode= 2003Natur.423..692S |last1= Stringer |first1= Chris |doi= 10.1038/423692a |pmid= 12802315 }}</ref><ref>{{cite web |url=http://www.talkorigins.org/faqs/homs/herto.html |title= Herto skulls (Homo sapiens idaltu) | publisher= talkorigins org |date= |accessdate=June 7, 2016}}</ref>
[[File:Herto, Ethiopia ; Homo sapiens idaltu 1997 discovery map.png|thumb|left|300px|Location of discovery]]
These specimens represent the direct ancestors of modern ''[[Homo sapiens sapiens]]'' which, according to the "[[Recent African origin of modern humans|recent African origin (RAO)]]" or "out of Africa" model, developed shortly after this period ([[Khoisan]] mitochondrial divergence dated not later than
A 2005 [[potassium-argon dating]] of volcanic [[tuff]] associated with the Omo remains showed them to date from around 195,000 years ago. At the time of the dating, this made these fossils the earliest known remains of [[anatomically modern humans]], older than the ''idaltu'' specimens.<ref>{{Citation |last=McDougall |first=I. |last2=Brown |first2=F. H. |last3=Fleagle |first3=J. G. |year=2005 |title=Stratigraphic placement and age of modern humans from Kibish, Ethiopia |journal=Nature |volume=433 |issue=7027 |pages=733–736 |doi=10.1038/nature03258 |pmid=15716951 |bibcode=2005Natur.433..733M}}</ref> In 2013, comparative craniometric analysis of the Herto ''idaltu'' skull with ancient and recent crania from other parts of Africa found that the specimen was morphologically closest to the Pleistocene [[Rabat]] fossil and Early Holocene Kef Oum Touiza skeleton. A later study found that Herto man and his contemporaries were cranially similar to Oceanians, with Northern Melenesians being the closest.<ref>{{Citation |last=Reyes-Centeno|first=H. |last2=Hubbe|first2=M |last3=Hanihara|first3=T. |last4=Stringer|first4=C. |last5=Harvati|first5=K. |year=2015|title=Testing modern human out-of-Africa dispersal models and implications for modern human origins |journal=Journal of Human Evolution|volume=87 |pages=95–106 |doi=10.1016/j.jhevol.2015.06.008 |pmid=26164107 }}</ref>
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