Mammutinae

例句：

1. 1. The Mammothinae are a group of extinct mammals.
   马默丁尼亚是一种已经灭绝的哺乳动物。
2. 2. The Mammothinae were discovered in the Arctic region.
   马默丁尼亚在北极地区被发现。
3. 3. TheMammothinae had a uniqueadaptation for their environment.
   马默丁尼亚具有适应其环境的独特的适应性。