== 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?