Modifiers matching amniote:

• extinct,
• lower,
• aquatic,
• oviparous,
• higher,

Simple categories matching extinct:

• equid,
• animal,
• mammal,
• herbivore,
• human,
• dinosaur,
• reptile,
• predator,
• organism,
• ratite,
• fauna,
• creature,
• bird,
• vertebrate,
• plant,
• archosaur,
• beast,
• giant,
• relative,
• amniote,