taipan vs elapid

taipan and elapid both are nouns.

Word	Noun	Adjective	Verb	Adverb
taipan	Yes	No	No	No
elapid	Yes	No	No	No

As nouns, elapid is a hypernym of taipan; that is, elapid is a word with a broader meaning than taipan:

taipan: large highly venomous snake of northeastern Australia
elapid: any of numerous venomous fanged snakes of warmer parts of both hemispheres

Other hypernyms of taipan include elapid snake.

taipan (noun)	elapid (noun)
large highly venomous snake of northeastern Australia	any of numerous venomous fanged snakes of warmer parts of both hemispheres