I periodically get asked about theropod teeth, so this is what I know.  If you have additional tooth related information please pass it on since very little is known or published.   Tanycolagreus topwilsoni The holotype included a fragmented skull with one premaxillary and two lateral teeth.  Unfortunately, the teeth were crushed with no visible serrations so it's unknown how to describe them.   Holotype skull           Koparion dougla