Megalodontoidea

例句：

1. 1.The Megalodon is a species of ancient shark that lived during the Cretaceous period.
   巨齿鲨是一种生活在白垩纪时期的古老鲨鱼。
2. 2. The Megalodon was one of the largest and most powerful predators in the ocean.
   巨齿鲨是海洋中最大的捕食者之一。
3. 3. The Megalodon's unique teeth allowed it to hunt prey much larger than itself.
   巨齿鲨独特的牙齿让它能够捕猎比自己还要大的猎物。