プレイストセンの後期,中国・クシャンの古人の頭蓋骨
Zhan-Yang Li1,2, Xiu-Jie Wu3, Li-Ping Zhou4
1Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China.
Science (New York, N.Y.)
|March 4, 2017
まとめ
中国から発見された化石の頭蓋骨は 古代東アジアの特徴と ネアンデルタール人の特徴を 混ぜ合わせた 人間の進化のモザイクを示しています この発見は,プレイストセンの末期における複雑な人口動態を強調しています.
科学分野:
- 古人類学
- 人間 の 進化
- プレイストセンの古生物学
背景:
- プレイストセンの後半のホミニン化石は 人類の進化史に重要な洞察を与えてくれます
- 古代の人口動態をマッピングする鍵となるのは 地域の多様性と相互関係です
研究 の 目的:
- リンジング (中国) の2つの初期のプレイストセンの頭蓋骨の形状を分析する.
- これらの化石と ユーラシアの現代のヒト類を 比較するためです
- 人類の進化のパターンを解明し 地域的な連続性と人口の相互作用を
主な方法:
- 化石の2つの頭蓋骨の形状分析
- 現代の西ユーラシアのホミニン化石との比較分析
- エンケファライゼーション,頭蓋骨の形状,および特定の解剖学的構造に関連する特徴の検査.
主要な成果:
- リンジングの頭蓋骨は 現代人の特徴と 古代人の特徴を混ぜ合わせています
- 旧世界全体で一般的な脳サイズ増加 (脳縮小) と頭蓋骨の縮小傾向を示しています.
- 東アジアの特徴的な頭蓋骨の特徴 (低い,平らな,広い神経頭蓋骨) が観察された.
- ネアンデルタール人と頭と内耳の形態が共有されていることが確認された.
結論:
- リンジング化石は独特の形態学的モザイクであり,東アジアにおける地域的な連続性と,他のユーラシアの集団との混合を反映しています.
- これらの発見は,プレイストセーン期の複雑な進化の経路と人口移動を理解するのに役立ちます.
- この研究は,一般的な生物学的傾向と人間の進化における地域特有の適応の複雑な相互作用を強調しています.
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