Most lithic industries associated with hunter-gatherergroups in Eastern South America, especially the ones with points present, date tothe Early Holocene, with some minor industries and lithic points typologiespersisting until the Middle Holocene and, more rarely, until the Late Holocene.This is the case for the Garivaldinense lithic industry associated pointstypologies. In this article we present the technological analysis of the pointsidentified at the Pororó site, located in central Rio Grande do Sul State,Brazil. The site is an artificial mound dated to around 2,500 BP. We applied anestablished protocol for analysis of stemmed points considering metric,morphological and technological features that allowed us to classify the artefactsin typologies. We identified two types of points associated to theGarivaldinense lithic industry: the Montenegro and Garivaldinense types. Wehave also identified a new type that has never been described before andproposed to refer to it as the Pororó type. At least one Pay Paso point wasidentified at the site, although this type of point is not yet known at other sitesof this region and chronology. The results indicate persistence of theGarivaldinense Culture from the Early to Late Holocene, as well astechnological innovation during the Late Holocene.

中文翻译：

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来自巴西南部土丘的晚全新世石器点：波罗罗遗址

大多数与南美洲东部狩猎-采集者群体相关的石器工业，尤其是那些存在点的工业，可以追溯到全新世早期，一些次要工业和石器点类型一直持续到全新世中期，更罕见的是，直到全新世晚期。这是Garivaldinense 石器工业相关点类型学的案例。在本文中，我们介绍了位于巴西南里奥格兰德州中部的波罗罗遗址的技术分析。该遗址是一个可追溯到约 2,500 BP 的人工土丘。我们应用了一个既定的协议来分析词干点，考虑到度量、形态和技术特征，这使我们能够对类型学中的人工制品进行分类。我们确定了与 Garivaldinense 石器工业相关的两种类型的点：Montenegro 和 Garivaldinense 类型。我们还发现了一种以前从未被描述过的新类型，并建议将其称为 Pororó 类型。该地点至少发现了一个 Pay Paso 点，尽管在该地区的其他地点和年表中尚不知道这种类型的点。结果表明，全新世早期至晚期全新世的Garivaldinense文化持续存在，以及全新世晚期的技术创新。