| Label | Id | |
|---|---|---|
| Brosimum | 194252 | |
| Bubaridae | 942712 | |
| Byrrhoidea | 107942 | |
| Cadulidae | 39429 | |
| Caecomastacembelus | 94234 | |
| Calciphila | 370942 | |
| Capsulimonadaceae | 2494208 | |
| Capsulimonadales | 2494207 | |
| Capsulimonas | 2494209 | |
| Carolella | 688942 | |
| Carpococcyx | 8942 | |
| Carpoporus | 689425 | |
| Castilla | 194256 | |
| Catorthorrhinus | 2269423 | |
| Ceratojoppini | 494279 |