一个罗纪的eutherian哺乳动物和有袋动物和胎盘动物的分歧
Zhe-Xi Luo1, Chong-Xi Yuan, Qing-Jin Meng
1Carnegie Museum of Natural History, Pittsburgh, Pennsylvania 15213, USA. luoz@carnegiemnh.org
Nature
|August 26, 2011
概括
在中国发现了一种新的罗纪欧类哺乳动物,将胎盘哺乳动物的起源推迟了3500万年. 这一发现有助于解决化石证据和早期胎盘进化的分子估计之间的差异.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 哺乳动物进化 哺乳动物进化
背景情况:
- 胎盘类动物是最丰富的哺乳动物,自古老时代以来主导着陆地生态系统.
- 欧动物 (胎盘哺乳动物) 与甲动物 (马动物) 的分离是哺乳动物史上的一个关键事件.
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