This article via Western Digs is a year-and-a-half old, but it discusses the application of DNA technology to burials that are much closer to the GCAS's home than Denisova cave.
The burials were found in Room 33, aka the Gambler's House, of Pubelo Bonito in Chaco Canyon. [Figure on right via Stephen Plog and Carrie Heitman, Hierarchy and Social Inequality in the American Southwest, A.D. 800-1200.]
From the Western Digs article: "They were interred in what’s been described as “the richest burial known in the Southwest” — 14 men and women buried over the course of 330 years in the same crypt, some accompanied by pieces of pottery and pendants, others lavished with thousands of turquoise and shell beads....And new analysis of DNA from the 14 sets of remains shows that these elites weren’t merely members of the same influential class — indeed, they were all members of the same extended family, a “dynasty” that traced its ancestry to a single woman...."
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