Modifiers matching dinosaur:

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

Simple categories matching bipedal:

• animal,
• mammal,
• being,
• predator,
• carnosaur,
• dinosaur,
• creature,