English English English English English English English English English Placental - Wikipedia English English English placental mammals Placentals mammal sisters listed in Wikipedia English English Placentalia placental placental mammals English English English Placentalia Placentalia English Placentalia placental mammals English English Placentalia English placental mammals English English English English Wikipedia English English placental mammals English English Placentalia English Placentalia placental mammals English English English English Placentalia placental mammals English English placental mammals English English English placental mammals English English English English placental mammals English English English English English English English English English placental mammals English English English English English placental mammal placental mammals English placental mammals placental mammals English English placental mammals placental mammals