Modifiers matching dinosaur:

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

Simple categories matching bipedal:

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