Penecontemporaneous Please translate to plain English The many morphological features shared by the Herto crania and AMHS to the exclusion of penecontemporaneous Neanderthals provide additional fossil data excluding Neanderthals from a significant contribution to the ancestry of modern humans I m assuming this means that idaltu has archaic features that Neanderthal doesn t have making idaltu our direct ancestor and not Neanderthal