- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Anatomical attribute of the Xyrillians. For this species, dermal plating serves as a mood sensory organ. The Xyrillian engineer Ah'len was surprised to see that Trip Tucker did not have dermal plating.