Modifiers matching amniote:

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

Simple categories matching extinct:

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