This is because , as a morganucodontid , it probably retained both the mammalian and non mammalian jaw joint , and also retained the postedentary bones .
Wareolestes is a mammaliaform , but it was not a true or crown - group mammal .
This is because , as a morganucodontid , Wareolestes probably retained both the mammalian and non mammalian jaw joint , and also retained the postedentary bones .
Wareolestes is a mammaliaform , but it was not a true or crown - group mammal .