[2] Poulianos's claims have been a continuing cause of controversy since,[4] his conclusions being in conflict with mainstream models of the speciation of genus Homo and its early dispersal.

The scientists involved used electron spin resonance measurements of the calcite encrustation and of bone fragments, and dated the age of the skull to between 240,000 and 160,000 years old.

[5] Poulianos dates the fossil stratigraphically, claiming an age of the relevant layer of about 670,000 years old, also based on electron spin resonance measurements.

[9] In 1992 an international team published its results of a uranium-series dating analysis of the small cavern, called "The Mausoleum", where the skull was allegedly found and the sediments, named "Layer 10" by Poulianos.

The consensus among today's paleoanthropologists [is centered around the idea] that the cranium belongs to an archaic hominid distinguished from Homo erectus and both the classic Neanderthals and anatomically modern humans.