Modifiers matching dinosaur:

• armored,
• large,
• small,
• extinct,
• carnivorous,
• aquatic,
• bipedal,
• quadrupedal,
• huge,
• new,
• prehistoric,
• horned,
• jurassic,
• herbivorous,
• flying,
• cretaceous,
• necked,

Simple categories matching quadrupedal:

• dinosaur,