'Theriodontia'是拉丁语词汇，意为“兽齿目”，通常用于描述二叠纪和三叠纪时期的哺乳形态类动物的一类。
以下是9个含有'Theriodontia'的例句：
1. Theriodontia是一类已灭绝的哺乳动物，生活在二叠纪和三叠纪时期。
Theriodontia is an extinct group of mammalian-like reptiles that lived during the Permian and Triassic periods.
2. Theriodontia的代表物种之一是Gorgonopsia，它们拥有长而锋利的犬齿。
One of the representative species of Theriodontia is Gorgonopsia, which has long and sharp canine teeth.
3. Theriodontia与恐龙并非同一类动物，它们的祖先关系也不同。
Theriodontia is not the same as dinosaurs, and they have different evolutionary relationships.
4. 二叠纪晚期，Theriodontia逐渐取代了之前的临近哺乳形态类动物，成为主宰生态系统的物种。
In the Late Permian, Theriodontia gradually replaced the previous mammalian-like reptiles and became the dominant species of the ecosystem.
5. 一些Theriodontia的物种曾经是二叠纪和三叠纪时期陆地上顶级的掠食者。
Some species of Theriodontia were top predators on land during the Permian and Triassic periods.
6. 相较于其它的哺乳形态类动物，Theriodontia的颌骨和牙齿更为精细，可以更高效地咀嚼食物。
Compared to other mammalian-like reptiles, the jaw and teeth of Theriodontia are more delicate, allowing them to chew food more efficiently.
7. 由于灭绝事件的影响，Theriodontia在三叠纪晚期逐渐失去了在生态系统中的地位。
Due to the extinction event, Theriodontia gradually lost its position in the ecosystem during the Late Triassic.
8. Theriodontia的化石残骸被发现在世界各地，这为科学家研究这类动物的进化历程提供了重要的证据。
Fossil remains of Theriodontia have been found all over the world, providing important evidence for scientists to study the evolutionary history of these animals.
9. 由于Theriodontia是哺乳形态类动物的一个分支，所以它们的骨骼结构和生理特征也有一些与哺乳动物相似的地方。
Because Theriodontia is a branch of mammalian-like reptiles, their skeletal structure and physiological characteristics also have some similarities with mammals.
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