AND it seems that cultures either domesticated cats or ferrets for the same purpose: pest rodent maintenance.
I find it not surprising, but really interesting, that some of the animals that have become the most common pets in the West had competition; and that it may have taken only some relatively small events and it could be raining foxes and ferrets instead of cats and dogs.
A fox of the same species was found in a much older grave in another part of Argentina nearly a decade ago. It may also have been a pet but its diet was not analysed.
It's much more about the specific burial and the inferences that can be reasonably drawn about South America before the introduction of dogs from the north 5k years ago. It references multiple burials with non-dog canids from across time periods in S.A., including at least one from about 4k years ago, as well as many other remains scattered in with human burials. It seems to build on existing theorizing that pre-Columbian practices might have changed more slowly than post. Then there are the statistical arguments. If you occasionally find a fox in human burials, based on the number of human burials you didn't find, you can feel pretty confident that there were more foxes buried with humans.
I did not do a very deep dive but it looks like there were "domesticated" dogs in the Americans prior to Europeans, but they were almost completely replaced by their European counterparts. This leads me to believe the European versions were far superior for the intended usage. If the American version was indeed significantly inferior for their intended purposes, they may have been at or below the effectiveness/usefulness levels of semi-domesticated animals, like foxes.
Edit: The_Sasswagon brings up a good point about the effects of potential European diseases on American dogs.
I don't think that is a safe conclusion at all, the colonial Europeans were pretty notorious for removing anything or anyone or anything they didn't see as civilized in the Americas. They also brought disease that wiped out an astounding number of the native people. From an also uninformed view it would be just as likely the native dogs suffered a similar fate, or simply disbanded and roamed free when their companions died.
Ha. Yeah estimated at 15,000 years ago. Archeaology often seems presumptious... We found a single fox buried with a human. Ergo: all humans had a fox named Slinky, whom they shared their secrets with in fox tongue language -- those that they could not divuldge to their family, lest they be scorned.