Possible Clues:

• "Jurassic Park" critters
• T. rex et al
• Prehistoric creatures, for short
• 'Jurassic Park' critters
• T. rex and others
• T. rexes, e.g
• "Jurassic Park" creations, informally
• Natural history museum exhibits, for short
• Prehistoric beasts, briefly
• Prehistoric critters, briefly