kauri pine vs coniferous tree

kauri pine and coniferous tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
kauri pine	Yes	No	No	No
coniferous tree	Yes	No	No	No

As nouns, coniferous tree is a hypernym of kauri pine; that is, coniferous tree is a word with a broader meaning than kauri pine:

Other hypernyms of kauri pine include conifer.

kauri pine (noun)	coniferous tree (noun)
any of various trees of the genus Agathis; yield dammar resin	any gymnospermous tree or shrub bearing cones