Platypus families do not have any particular name, because
platypuses are generally solitary creatures which do not generally
live in family groups, except for while the young are weaning.
The family of the platypus is called Ornithorhynchidae.
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The platypus belongs to the genus Ornithorhynchus.
It is of the family Ornithorhynchidae in the order Monotremata.
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The platypus is a mammal. Specifically, it is a monotreme, which
is an egg-laying mammal. It belongs to the family
ornithorhynchidae.