| Sessilida | |
|---|---|
| A vaginicolid, Cothurnia crystallini | |
| Scientific classification | |
| Domain: | Eukaryota |
| (unranked): | SAR |
| (unranked): | Alveolata |
| Phylum: | Ciliophora |
| Subphylum: | Intramacronucleata |
| Class: | Oligohymenophorea |
| Subclass: | Peritrichia |
| Order: |
Sessilida Stein, 1833 |
| Families | |
Sessilida is the largest order of the peritrich ciliates.