This 2015 post on This Week in Pennsylvania Archaeology is about zooarchaeology and includes new photos of animal bones and cut marks from the famous Eschelman Site in Lancaster County, which was the subject of one of the earliest systematic analyses of bone modification marks on an American faunal assemblage.
Reference:
Guilday, John E., Paul W. Parmalee and Donald P. Tanner
1962 Aboriginal Butchering Techniques at the Eschelman Site (36LA12), Lancaster County, Pennsylvania. Pennsylvania Archaeologist 32(2):59-83.