prototheria

English Thesaurus

1. echidnas; platypus (noun.animal)

hypernym	:	class,
definition	:	(biology) a taxonomic group containing one or more orders (noun.group)

member holonym	:	monotremata, order monotremata,
definition	:	coextensive with the subclass Prototheria (noun.animal)

member meronym	:	class mammalia, mammalia,
definition	:	warm-blooded vertebrates characterized by mammary glands in the female (noun.animal)