All Monsters (6)

• 18 HD Monsters in Basic Fantasy Role-Playing Game
  
• 18 HD Monsters in OSRIC
  
• Allosaurus - Jurassic carnivore
  OSRIC
• Argentinosaurus - Cretaceous herbivore, relatively recently discovered, twice as massive as brachiosaurus
  OSRIC
• Dinosaur, Tyrannosaurus Rex - Bipedal carnivorous dinosaur with massive skull and powerful bite
  BFRPG
• Roc - Giant eagle-like birds with dark brown or golden plumage
  BFRPG, OSE, OSRIC