spadefoot toad vs anuran

spadefoot toad and anuran both are nouns.

Word	Noun	Adjective	Verb	Adverb
spadefoot toad	Yes	No	No	No
anuran	Yes	Yes	No	No

As nouns, anuran is a hypernym of spadefoot toad; that is, anuran is a word with a broader meaning than spadefoot toad:

spadefoot toad: a burrowing toad of the Northern Hemisphere with a horny spade-like projection on each hind foot
anuran: any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

Other hypernyms of spadefoot toad include batrachian, frog, salientian, toad, toad frog.

spadefoot toad (noun)	anuran (noun)
a burrowing toad of the Northern Hemisphere with a horny spade-like projection on each hind foot	any of various tailless stout-bodied amphibians with long hind limbs for leaping; semiaquatic and terrestrial species

spadefoot toad (adjective)	anuran (adjective)
	relating to frogs and toads