In taxonomy terms the difference between subkingdom and superphylum
is that subkingdom is a taxonomic category below kingdom and above superphylum while superphylum is a taxonomic category above phylum and below subkingdom.
subkingdom
English
Noun
(
en noun)
(taxonomy) A taxonomic category below kingdom and above superphylum.
superphylum
English
Noun
(superphyla)
(taxonomy) A taxonomic category above phylum and below subkingdom