They surely look like those figures.
And this underground structure, could it have been a Kiva?
"Pit houses were peoples' houses, where they cooked and ate, slept, made clothing and weapons, and, in fact, did everything necessary for family and communal life—including spiritual activity."
http://www.abrock.com/InterimReports/Kivas/Kivas.html
And check out the design on the pottery.