| K | |
|---|---|
| Kickxellomycota | EUKARYA>OPISTHOKONTA>UNIKONTA>FUNGI>BASAL FUNGI>KICKXELLOMYCOTA |
| Kickxellomycotina | see Kickxellomycota |
| Kinetoplastea | EUKARYA>EXCAVATA>DISCICRISTATAE>KINETOPLASTA |
| Kinorhyncha | EUKARYA>UNIKONTA>OPISTHOKONTA>ANIMALIA>BILATERIA>PROTOSTOMATA>ECDYSOZOA>SCALIDOPHORA>KINORHYNCHA |
| Klebsormidiophyceae | see Charophyceae |