クレタケア期に存在していた鳥類の放射能に関する決定的な化石の証拠です
Julia A Clarke1, Claudia P Tambussi, Jorge I Noriega
1Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Campus Box 8208, Raleigh, North Carolina 27695, USA. Julia_Clarke@NCSU.edu
Nature
|January 22, 2005
まとめ
化石の証拠は,水鳥の親類を含む初期の鳥の系統が,非鳥類の恐竜と共存していたことを示しています. この発見は,鳥類が白三世 (K/T) 絶滅イベントを通して大量に生き残ったことを支持しています.
科学分野:
- パレオントロジー・パレオントロジー
- 進化生物学の進化生物学について
- 鳥類の古生物学について
背景:
- クレータ紀・三次紀 (K/T) 境界の大量絶滅が鳥類の系統に与える影響については,依然として議論が続いている.
- いくつかの研究は,鳥類の放射能が絶滅後に発生したと示唆しているが,他の研究は,絶滅前の起源と生存を提案している.
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