In fact the
whole taxonomy keeps spiraling in from Superfamily, to Family, to
Subfamily, to Tribe, to Genus and only then to hundreds and hundreds of Species, reminding me of the thing we used to do with our addresses when we were kids, only we'd spiral out: second floor middle bedroom, 36 Devonshire Boulevard, Leslieville, Toronto, Ontario, Canada... until we got, via various stellar systems, to the universe.