<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Oldowan</topic></authority><related type="broader"><topic>Pre-Chellean</topic></related><variant type="other"><topic>Oldowen</topic></variant><variant type="other"><topic>Olduvan</topic></variant><variant type="other"><topic>Pebble culture</topic></variant> <note xml:lang="en"><![CDATA[ Period of toolmaking tradition characterized by crude bi-directionally chipped tools of quartz, quartzite, or basalt, used for chopping, scraping, or cutting. These date from the early Paleolithic. It is thought that these implements were manufactured by early hominids or robust australopithecines. ]]></note></mads>