t ▁Red ▁W are ▁are ▁still ▁used ▁by ▁arch ae olog ists . ▁ ▁In ▁her ▁ 1 9 9 4 ▁volume , ▁Dr . ▁Pat ric ia ▁Crown ▁suggested ▁four ▁models ▁with ▁which ▁to ▁analyze ▁Sal ado ▁Pol ych rom es . ▁ ▁They ▁are ▁" el ite ▁symbols ▁of ▁authority ▁or ▁items ▁of ▁exchange ," ▁" ind ic ators ▁of ▁participation ▁in ▁an ▁economic ▁al liance / reg ional ▁system ," ▁" objects ▁associated ▁with ▁the ▁spread ▁of ▁a ▁religious ▁ide ology ," ▁and ▁as ▁" mark ers ▁of ▁eth nic ity ▁for ▁a ▁migr ant ▁group " ▁( C rown ▁ 1 9 9 4 : ▁vi ). ▁More ▁recently ▁arch ae olog ists ▁have ▁exam ined ▁these ▁types ▁distribution ▁across ▁the ▁South west ▁( L y ons ▁ 2 0 0 3 ) ▁and ▁suggests ▁that ▁these ▁types ▁are ▁markers ▁of ▁migr ant ▁groups ▁em an ating ▁from ▁n ort he astern ▁Arizona . ▁ ▁Cer am ic ▁typ ology ▁Ro ose vel t ▁Red ▁W are ▁is ▁divided ▁by ▁arch ae olog ists ▁into ▁a ▁series ▁of ▁types , ▁which ▁cover ▁shorter ▁sp ans ▁of ▁time , ▁based ▁on ▁configurations ▁of ▁the ▁painted ▁designs ▁and ▁rim ▁profiles ▁of ▁bow ls . ▁Ro ose vel t ▁Red ▁W are ▁has ▁tradition ally ▁been ▁organized ▁into ▁three ▁types ▁based ▁on ▁sty list ic ▁differences . ▁More ▁recently ▁research ers ▁at ▁Arch ae ology ▁South west ▁( pre viously ▁named ▁the ▁Center ▁for ▁Des ert ▁Arch ae ology ) ▁in ▁T