No problem with anim8or. Import the head Set the view to side view Maximize the view with the eye button Select point editing Take the knife, and make the cut (the new points will be white ones) Take the selector and select all the points you want to remove and push del.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!