craniate vs Amniota

craniate and Amniota both are nouns.

Word	Noun	Adjective	Verb	Adverb
craniate	Yes	No	No	No
Amniota	Yes	No	No	No

As nouns, Amniota is a hyponym of craniate; that is, Amniota is a word with a more specific, narrower meaning than craniate:

craniate: animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium
Amniota: higher vertebrates (reptiles, birds and mammals) possessing an amnion during development

craniate (noun)	Amniota (noun)
animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium	higher vertebrates (reptiles, birds and mammals) possessing an amnion during development