Permalink : http://hdl.handle.net/2115/91240

北海道東部常呂川上流域の置戸町に位置する田付遺跡より出土した磨製棒状石製品について報告した。類例となる道央部石狩低地帯南部のアンカリトー7遺跡出土の磨製石製品との比較を通して、形態的特徴をまとめた。いずれも出上層序と石器群の技術的特徴から後期旧石器時代の遺物と判断される。さらに、形態面で類似する旧大陸および北米の磨製骨角器と比較し、磨製棒状石製品の機能的役割について、飛び道具などの有機質の組み合わせ道具を製作する際に見本となった「模範品」という解釈を提示した。
The present paper reports the ground lithic rod from the Tatsuki site, located along the upper Tokoro River, Oketo Town in eastern Hokkaido. Through a comparison to the techno-morphologically similar ground stone artifact from the Ankarito 7 site in southern Ishikari Lowland in central Hokkaido, observed morphological similarities and differences between these two unique artifacts are described. The archaeological layers where these artifacts were yielded and the lithic technological characteristics shared between these assemblages suggest that both stone artifacts are attributable to Upper Paleolithic. In terms of the overall morphology shaped by grinding, the ground lithic rods are compared to bone rods from the Old World Upper Paleolithic and North American prehistoric records. Given the recognition that the ground lithic rods are analogous to morphologically comparable bone rods in North American archaeological record, I give a functional interpretation that the ground lithic rods were used for an "exemplar'' for manufacturing organic composite tools such as projectiles.