初期のホモ・エレクタスは高地に住み,オルドワンとアチェーレアンの道具を生産した
Margherita Mussi1,2,3, Matthew M Skinner4,5, Rita T Melis2,6
1Dipartimento di Scienze dell'Antichità, Sapienza Università di Roma, 00185 Roma, Italy.
Science (New York, N.Y.)
|October 12, 2023
まとめ
この研究は,シンクロトロン画像を用いて,エチオピアの幼児ホモエレクトスの下を特定しました. オルドワンの道具と 直接関係する化石は200万年前のもので 初期の人類の進化と 道具の使用に関する 重要な洞察を与えてくれます
科学分野:
- 古人類学
- 考古学
- 地質年代学
背景:
- ホモ・ハビリスやホモ・エレクタスのような初期のヒト類を アフリカの特定の石器産業と結びつけるのは 化石の証拠が少ないため 難しいことです
- エチオピアにあるガーバ4号遺跡は ホミニンの遺骸と 石器を結びつける 珍しい機会です
研究 の 目的:
- エチオピアのガーバIVで オルドワンの石器産業に 関連したヒト類を特定する
- 遺跡の重要な考古学的層の正確な年代を 確立するためです
- アチェーレの集合体に関する 最古の証拠を調査する
主な方法:
- シンクロトロン画像を用いて,乳児の下内部の永久歯の内部形状を分析した.
- 考古学的層の年齢を決定するために,古磁気年代測定技術が利用されました.
主要な成果:
- レベルEの幼児下はホモ・エレクトスと特定され この種の最も古い化石の"つを表しています
- レベルEはホモ・エレクトスの下と オルドワンの道具を収めていて 約200万年前のものです
- その上にあるレベルDは 約195万年前のもので アチェーレの石器の集合体として 最も古くから知られているものです
結論:
- ガーバ4号のオルドワンの道具とホモエレクトスの直接的な関連は,初期のヒトの行動と技術的な能力の重要な証拠を提供します.
- この発見はホモ・エレクタスの時代を後退させ この地域のアチェーレ産業の 重要な初期時期を確立しました
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