During the identification of the osteological material from two archaeological sites (39FA23 and 39FA83) in the Angostura Reservoir basin, South Dakota, the distribution of the various elements began to assume a pattern which invited closer examination on the chance that inferences might be drawn concerning the method of preparing the carcass for food.

Although the numerical count of the elements is subject to the accidents of preservation and the size of the excavation, the distribution of the various elements from an excavation which meets the archaeological requirements is probably a reasonably accurate reflection of the parts brought into camp, since one element has as good a chance of being preserved as another.