Rhegmatodon

例句：

1. 1. The rhematic skeleton of the animal is unique to this species.
   这种动物特有的骨骼结构。
2. 2. The discovery of a new species in the deep sea has sparked excitement among scientists.
   深海中发现的新物种引起了科学家的兴奋。
3. 3. Rhematic bones are often found in fossils from ancient marine environments.
   在古代海洋环境的化石中，经常发现有 rhematic 骨头。