See, Atopodentatus was an herbivore - and herbivorous marine tetrapods, living or extinct, are pretty rare.

看，Atopodentatus 是一种食草动物 - 而食草海洋四足动物，无论是现存的还是灭绝的， 都非常罕见。

Herbivorous marine tetrapods are very rare - there were just a handful in the Mesozoic and there are only a few alive today, with manatees and dugongs, marine iguanas, and green sea turtles being pretty much it.

草食性海洋四足动物非常罕见——在中生代只有少数，今天也只有少数活着，海牛和儒艮、海鬣蜥和绿海龟几乎都是。