Rhizodontida

（重定向自Rhizodontidae）

Rhizodonts (order Rhizodontida) are an extinct group of predatory tetrapodomorph fishes known from many areas of the world from the Givetian through to the Pennsylvanian - the earliest known species is about 377 million years ago (Mya), the latest around 310 Mya. Rhizodonts lived in tropical rivers and freshwater lakes and were the dominant predators of their age. They reached huge sizes - the largest known species, Rhizodus hibberti from Europe and North America, was an estimated 7 m in length, making it the largest freshwater fish known.

单词	Rhizodontidae
释义	Rhizodontidae /ˌraizəu'dɔntədi:/ 英汉-汉英词典根齿鱼科词组 \| 习惯用语您要查找的是不是： rhododendron n. 杜鹃花 orthodontia n. 畸齿矫正(术),正牙学 Rhizodontidae n. [古生] 根齿鱼科英语百科 Rhizodontida （重定向自Rhizodontidae） Rhizodonts (order Rhizodontida) are an extinct group of predatory tetrapodomorph fishes known from many areas of the world from the Givetian through to the Pennsylvanian - the earliest known species is about 377 million years ago (Mya), the latest around 310 Mya. Rhizodonts lived in tropical rivers and freshwater lakes and were the dominant predators of their age. They reached huge sizes - the largest known species, Rhizodus hibberti from Europe and North America, was an estimated 7 m in length, making it the largest freshwater fish known.
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Rhizodontidae /ˌraizəu'dɔntədi:/

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Rhizodontida