ロリスとガラゴスの古代の分岐の化石証拠
Erik R Seiffert1, Elwyn L Simons, Yousry Attia
1Department of Biological Anthropology and Anatomy, Duke University, and Division of Fossil Primates, Duke Primate Center, 1013 Broad Street, Durham, North Carolina 27705, USA. erik.seiffert@duke.edu
Nature
|March 28, 2003
まとめ
エジプトで発見された化石は,ガラギドとロリシドを含む,最も古い冠状のストライプシリンを明らかにしています. これは,これらの霊長類群の古代アフリカ・アラビア起源を支持する最初の強力な化石の証拠を提供します.
科学分野:
- パレオントロジー・パレオントロジー
- 霊長類の進化について
- 哺乳類の進化について
背景:
- コロナ・ストリープシリン類の霊長類 (レムール,ロリス,ガラゴス) の起源は,旧世初期にアフリカ・アラビアにあると推測されている.
- 広範な古生物学的調査にもかかわらず,アフリカ・アラビアからの断定的な化石の証拠は欠けています.
研究 の 目的:
- アフリカ・アラビア・パレオゲネスの最初の実証可能な冠状ストリープシリンを記述する.
- クラウン・ストリープシリニの古代アフリカ・アラビア起源の仮説を支持する化石の証拠を提供すること.
主な方法:
- 化石霊長類の形態学的分析.
- エジプトにおける古生物学的発掘と発見.
- バイオジオグラフィックデータの統合.
主要な成果:
- エジプトの後半中期エオセンのガラギドとローリシドの記述.
- ロリシドのストレプシリン歯茎の最も古い化石の証拠を特定しました.
- 議論の余地のないロリシフォームの既知の時間範囲を約2倍にしました.
結論:
- これらの発見は,クラウン・ストリープシリニの古代アフリカ・アラビア起源に対する最初の強力な古生物学的な支持を提供します.
- この発見は,現存するロリシフォーム族のエオセンの分岐を示唆している.
- 化石は,アフリカ・アラビアの最古の決定的な冠状ストレプシリネスを表しています.
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