Inostrancevia was structured differently from both reptiles and mammals but was usual for protomammals.

狼蜥兽的结构与爬行动物和哺乳动物不同，但在原哺乳动物中很常见。

Inostrancevia is part of a group of animals called protomammals that combined reptile-like and mammal-like features.

狼蜥兽是被称为原始哺乳动物的动物群中的一员，这种动物集爬行动物和哺乳动物的特征于一身。

Finally, vertebrates made it onto land on a permanent basis, leading to alligator-like amphibians and saber-toothed protomammals.

最后， 脊椎动物永久性地登陆陆地，导致了类似鳄鱼的两栖动物和剑齿类原始哺乳动物。