Chondrosteidae

例句：

1. 1. Chondrosteidae is a group of fish that have a hard skeleton made of cartilage.
   软骨鱼纲是一类有硬骨质外壳的鱼类。
2. 2. The discovery of new species in the Chondrosteidae family has sparked interest in their evolutionary history.
   在软骨鱼纲家族中发现的新物种引发了对它们进化史的兴趣。
3. 3. The Chondrosteidae family includes many important marine organisms, such as sharks and rays.
   软骨鱼纲家族包括许多重要的海洋生物，如鲨鱼和鳐鱼。