擬似トライボスフェン系とトライボスフェン系哺乳類におけるコンバージント・デンタル・アダプテーション
Zhe-Xi Luo1, Qiang Ji, Chong-Xi Yuan
1Carnegie Museum of Natural History, Pittsburgh, Pennsylvania 15213, USA. luoz@carnegiemnh.org
Nature
|November 2, 2007
まとめ
新しく発見されたジュラ紀中期の哺乳類は,原始的な骨格の特徴と並行して高度な擬似トライボスフェニックの歯茎を示し,初期の哺乳類の進化に関する以前の概念に異議を唱える. この発見は,中生期の哺乳類における多様な歯の適応を強調しています.
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
- 哺乳類の進化について
背景:
- トリボスフェニックの歯茎は,基礎性有袋類と胎盤類の重要な適応であり,粉砕と研磨を容易にする.
- 絶滅した擬似トライボスフェニック哺乳類は,前半の擬似タロニドが擬似プロトコンを受容する逆転したモラルの構造を有している.
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