They weren't part of the perissodactyl group  itself; they're what's called a sister group.

它们本身不属于奇蹄类。他们就是所谓的姐妹团。

And it had been over 60 million years  the two sister groups split - plenty of time for Toxodon to evolve its weird looks.

这两个姐妹群体分裂已经超过 6000 万年 - 有足够的时间让 Toxodon 进化出其怪异的外观。

Within this group, analyses usually place bats with a clade that contains pangolins, carnivores, and ungulates, or as the sister group of shrews, moles, and maybe hedgehogs.

在这一组中， 分析通常将蝙蝠与包含穿山甲、食肉动物和有蹄类动物的进化枝放在一起，或者将其作为姊妹组， 包括鼩鼱、鼹鼠，也许还有刺猬。