Something like the front plate mask worn by Tigris in Gladiator but without the full helm http://2.bp.blogspot.com/_kUiKkNDIwhU/SkVJ-pTUJxI/AAAAAAAAARI/B199WUGDrUg/s1600/T1.jpg
The ones that look more like the carved face of a statue rather than the more surreal ones used in plays
Is there a name for this style of mask?
The Greek word for mask is [prosopon] (http://perseus.uchicago.edu/cgi-bin/philologic/getobject.pl?c.62:2:190.LSJ ) and it is persona in Latin. There were various different masks but Im guessing you are asking about masks [like this.] (http://www.beazley.ox.ac.uk/tools/pottery/painters/keypieces/redfigure/pronomos.htm) Since the masks were created from organic material none of them exist anymore and the only examples of them comes from pottery and terracota examples.
[Brooke, Iris (1962), Costume in Greek Classical Drama, London Methuen] (https://books.google.com/books?id=BYWkzOawLyIC&pg=PA233&lpg=PA233&dq=Brooke,+Iris+1962.+Costume+in+Greek+Classical+Drama.+London:+Methuen.&source=bl&ots=URbU067Vo7&sig=olk-gsqhRx6N8G-6fceyKe-SaNg&hl=en&sa=X&ved=0ahUKEwigtrmbvanMAhUJNiYKHd6TBogQ6AEIKDAC#v=snippet&q=mask&f=false)
