Cobble Item Number: DiRi-15:5663 from the Sto:lo Research & Resource Management Centre
large, discoid cobble recovered in northern half of trench/unit, partly (30%) embedded in western sidewall; no obvious modification.
Artifect was missing a number, Anthony Greasch was contacted and he provided all the needed information. His email added this info in addition:
"These cobble 'discoids' are interesting, to say the least. We have observed and recovered these in unambiguously cultural deposits at DiRi-15 as well as at DiRi-1. This particular specimen was recovered in a particularly complex stratum in the southwestern areas of Structure 11 at Welqámex (DiRi-15); it was embedded in a matrix that included other common elements of Welqámex deposits, including thermally modified rock, charcoal, lithics, etc. This is all to say that although the cobble shows no obvious signs of modification, it was intentionally transported from the river's edge to the terrace on which Structure 11 was built and occupied. Why? Well, that's a good question, for sure. We might hypothesize that these broad, flat cobbles may have made for good, functional surfaces on which to engage other activities, place objects, and/or to cover storage pits in dwelling floors. (We see evidence for the latter in Structure 7 at the same settlement, even if that cobble is much larger.)"
provenience # 543. House 11