. ▁ ▁Co on ▁takes ▁the ▁Nord ics ▁to ▁be ▁a ▁partially ▁dep ig ment ed ▁branch ▁of ▁the ▁greater ▁Mediter rane an ▁ra cial ▁stock . ▁This ▁theory ▁also ▁supported ▁by ▁Co on ' s ▁ment or ▁E arn est ▁Albert ▁H oot on , ▁who ▁in ▁the ▁same ▁year ▁published ▁Tw il ight ▁of ▁Man , ▁which ▁notes : ▁" The ▁Nord ic ▁race ▁is ▁certainly ▁a ▁dep ig ment ed ▁off sh oot ▁from ▁the ▁basic ▁long - head ed ▁Mediter rane an ▁stock . ▁It ▁deser ves ▁separate ▁ra cial ▁classification ▁only ▁because ▁its ▁bl ond ▁hair ▁( ash ▁or ▁golden ), ▁its ▁pure ▁blue ▁or ▁grey ▁eyes ". ▁ ▁Co on ▁suggests ▁that ▁the ▁Nord ic ▁type ▁emer ged ▁as ▁a ▁result ▁of ▁a ▁mixture ▁of ▁" the ▁Dan ub ian ▁Mediter rane an ▁stra in ▁with ▁the ▁later ▁Cord ed ▁element ". ▁Hence ▁his ▁two ▁main ▁Nord ic ▁types ▁show ▁Cord ed ▁and ▁Dan ub ian ▁pre domin ance , ▁respectively ▁. ▁The ▁third ▁" K elt ic " ▁or ▁" H all st att " ▁type ▁Co on ▁takes ▁to ▁have ▁emer ged ▁in ▁the ▁European ▁Iron ▁Age , ▁in ▁Central ▁Europe , ▁where ▁it ▁was ▁subsequently ▁mostly ▁replaced , ▁but ▁" found ▁a ▁refuge ▁in ▁Sweden ▁and ▁in ▁the ▁eastern ▁valle ys ▁of ▁southern ▁Norway ." ▁ ▁Co on ▁further ▁recogn izes ▁the ▁following ▁termin ology ▁of ▁earlier ▁authors : ▁Fen no - N ord ic , ▁" a ▁hypoth et ical ▁eastern ▁branch ▁of