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箭齿兽

箭齿兽属
化石时期:中新世全新世11.6–0.005 Ma
绝灭(化石)
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 哺乳纲 Mammalia
目: 南方有蹄目 Notoungulata
科: 箭齿兽科 Toxodontidae
属: 箭齿兽属 Toxodon
Owen, 1837
  • T. burmeisteri Giebel, 1866
  • T. chapalmalensis Ameghino, 1908
  • T. darwini Burmeister, 1866
  • T. ensenadensis Ameghino, 1887
  • T. expansidens Cope, 1886
  • T. gracilis Gervais and Ameghino, 1880

箭齿兽Toxodon)是南方有蹄目中已灭绝的一生态上与河马相似,生存于中新世全新世南美洲。箭齿兽与一些南蹄目经历了南北美洲生物大迁徙,相信因更新世的气候转变而灭绝。查尔斯·达尔文(Charles Darwin)在《小猎犬号航行之旅》中首先研究了牠的化石。有指箭齿兽的生活模式有点似南美洲的河马,有可能被一般剑齿虎所掠食。

Toxodon platensis

箭齿兽中的T. platensis是一种体型很大的草食性动物,长约2.75米及高1.5米,外观像犀牛

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箭齿兽
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