presence of Celtic elements in the Northwest is indisputable, but there is no unanimity in considering whether there was an only Indo-European language in the West of Iberia, of Celtic kind, or either a number of languages derived from the arrival of non-Celtic Indo-Europeans first, and Celts later on". Some academic positions on this issue: Francesco Benozzo, proponent of the Palaeolithic continuity theory, considers that Celtic language is autochthonous in Galicia. Since recent genetic studios show that European and Iberian Palaeolithic population was assimilated by larger migrant populations proceeding first from the Balkans and Anatolia, and later from Central Europe and ultimately from the Pontic steppe, this theory is probably flawed. For John T. Koch and Barry Cunliffe, proponent of the Celtic from the West theory, the Celtic language would have expanded during the late Bronze Age from the European Atlantic fringe, including Galicia, to the east. For Patrick Simms-Williams, Celtic expanded from modern day France during the late Bronze Age. Joan Coromines, lexicographer and author of the Diccionario crítico etimológico castellano e hispánico, considered that Galician language had a very important substrate attributable to at least two different Indo-European languages, an older non Celtic one who he derived from the Urnfield people and thought was present in most of northern Iberia, and another one he named Artabrian, the Celtic language of the Celts of Galicia. Blanca M. Prósper and Francisco Villar defend that Lusitanian is a non Celtic Indo-European language related to Italic languages because, in their opinion, the Indo-European aspirated stops have evolved into /f/ and /h/. At the same time, all along the area of this language, and specially in modern-day Galicia, a Celtic language was spoken; this language, a q-Celtic language similar to Celtiberian, is the Western Hispano-Celtic."Anyway, nothing of what I am going to say precludes the existence of Celtic speakers all along the Atlantic coast of Spain and Portugal. As a matter of fact, a great deal of evidence, mostly from place names and personal names, points to their presence there. By means of an increasingly refined scrutiny we are able to come up with much Celtic vocabulary never attested in Celtiberian, as well as archaisms in word formation, like the preservation of the simple superlative suffix in —amo-, as well as phonetic changes that Celtiberian never shared, like for instance the loss of/g/ in contact with front vowels." Joaquín Gorrochategui, José M. Vallejo,