Rhizodontida

（重定向自Rhizodont）

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	Rhizodont
释义	Rhizodont 英语百科 Rhizodontida （重定向自Rhizodont） 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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