However , no existing ( or extant ) placental mammal has this number .
The greatest number of teeth in any known placental land mammal was 48 , with a formula of 3.1. 5.33.1. 5.3 .
No existing ( or extant ) placental mammal has this number .
The greatest number of teeth in any known placental land mammal was 48 , with a formula of 3.1. 5.33.1. 5.3 .