▁The ▁appearance ▁of ▁these ▁styles ▁indicates ▁a ▁certain ▁special ization ▁of ▁labor , ▁with ▁distinct ▁settled ▁cult ures ▁established ▁by ▁ 1 0 0 0 ▁B CE . ▁The ▁earliest ▁settled ▁cult ures ▁were ▁centered ▁on ▁the ▁site ▁of ▁Ch up í cu aro , ▁Gu an aju ato , ▁which ▁has ▁a ▁large ▁zone ▁of ▁influence ▁from ▁Dur ango ▁east , ▁crossing ▁through ▁modern ▁J alis co ' s ▁north . ▁S ites ▁related ▁to ▁these ▁cult ures ▁have ▁been ▁found ▁in ▁B ola ños , ▁T oto ate , ▁the ▁B ola ños ▁River ▁C any on ▁and ▁Tot atic he ▁as ▁well ▁as ▁other ▁locations ▁in ▁the ▁Los ▁Alt os ▁Region . ▁Cult ures ▁d ating ▁to ▁the ▁early ▁part ▁of ▁the ▁Christian ▁era ▁are ▁distinguished ▁by ▁the ▁use ▁of ▁sh aft ▁tomb s , ▁with ▁major ▁examples ▁found ▁in ▁A cat lán ▁de ▁Ju á rez , ▁El ▁Ar en al ▁and ▁Cas im iro ▁Cast illo . ▁The ▁use ▁of ▁this ▁type ▁of ▁tomb ▁is ▁unknown ▁anywhere ▁else ▁in ▁Mexico . ▁ ▁In ▁the ▁ 7 th ▁century , ▁Tol te c ▁and ▁Te ot ih u ac an ▁influence ▁is ▁evident ▁in ▁the ▁area , ▁with ▁a ▁domin ion ▁called ▁X alis co ▁established ▁by ▁the ▁Tol te cs ▁in ▁ 6 1 8 . ▁The ▁domin ion ▁was ▁established ▁through ▁the ▁military ▁dom ination ▁of ▁the ▁we aker ▁local ▁groups . ▁ ▁During ▁this ▁time , ▁cer am ics ▁were ▁improved ▁and ▁the ▁working ▁of ▁gold