| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Chordata (Chordates) | 3 | 0 | 0 |
| Chroicocephalus Eyton 1836 (Hooded gulls) | 1 | 0 | 0 |
| Chroicocephalus ridibundus (Linnaeus 1766) (Black-headed Gull) | 0 | 0 | 1 |
| Chromadoridae Filipjev 1917 | 2 | 0 | 0 |
| Chromista | 8 | 0 | 0 |
| Chrysallida Carpenter 1856 | 1 | 0 | 0 |
| Folinella excavata (Phillippi 1836) | 0 | 0 | 1 |
| Ciconia Brisson 1760 | 1 | 0 | 0 |
| Ciconia ciconia (Linnaeus 1758) (White Stork) | 0 | 0 | 1 |
| Ciconiidae (storks and relatives) | 1 | 0 | 0 |
| Ciconiiformes | 1 | 0 | 0 |
| Clupeidae (herrings) | 1 | 0 | 0 |
| Clupeiformes | 2 | 0 | 0 |
| Coccosphaerales | 1 | 0 | 0 |
| Congruentidiaceae | 1 | 0 | 0 |
