fossiles
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Cherninia | Taxon | 7 | 0.1 |
| Chenoprosopus | Taxon | 7 | 0.1 |
| Cheloniellida | Taxon | 4 | 0.1 |
| Cheliderpeton | Taxon | 6 | 0.0 |
| Cheleutochroa Elegans | Taxon | 2 | 0.0 |
| Cheiromachus Coriaceus | Taxon | 1 | 0.0 |
| Chaunograptus | Taxon | 3 | 0.0 |
| Charniodiscus | Taxon | 15 | 0.9 |
| Charnia | Taxon | 25 | 1.2 |
| Charassognathus | Taxon | 10 | 0.0 |
| Charassognathidae | Taxon | 6 | 0.0 |
| Chainosauria | Taxon | 6 | 0.1 |
| Ceratodus | Taxon | 13 | 0.3 |
| Ceratodontimorpha | Taxon | 2 | 28.5 |
| Cephalozoa | Taxon | 4 | 1.3 |
| Cephalochordata | Taxon | 72 | 17.0 |
| Cephalaspis | Taxon | 21 | 2.9 |
| Cephalaspidomorphi | Taxon | 34 | 5.8 |
| Cephalaspidiformes | Taxon | 3 | 0.3 |
| Cephalaspididae | Taxon | 2 | 0.0 |
| Cephalaspidae | Taxon | 3 | 0.1 |
| Cenomanocarcinidae | Taxon | 2 | 0.2 |
| Cavusgnathidae | Taxon | 2 | 0.0 |
| Castorocauda | Taxon | 26 | 2.6 |
| Caspiomyzon Wagneri | Taxon | 23 | 0.2 |
| Caspiomyzon | Taxon | 12 | 0.1 |
| Casineria | Taxon | 7 | 1.8 |
| Caseopsis | Taxon | 9 | 0.0 |
| Caseoides | Taxon | 10 | 0.0 |
| Caseidae | Taxon | 18 | 0.9 |
| Caseasauria | Taxon | 21 | 1.0 |
| Casea | Taxon | 16 | 0.5 |
| Carrolla | Taxon | 5 | 0.0 |
| Cardiocephalus | Taxon | 7 | 0.0 |
| Captorhinida | Taxon | 11 | 0.2 |
| Capitosaurus | Taxon | 11 | 0.0 |
| Capitosauria | Taxon | 6 | 1.2 |
| Capetus | Taxon | 9 | 0.0 |
| Caodeyao | Taxon | 5 | 0.0 |
| Candelariodon | Taxon | 8 | 0.0 |
| Camptognathus | Taxon | 1 | 0.0 |
| Campinasuchus Dinizi | Taxon | 7 | 0.1 |
| Campbellodus Decipiens | Taxon | 2 | 0.2 |
| Calmasuchus Acri | Taxon | 4 | 0.0 |
| Calmasuchus | Taxon | 4 | 0.0 |
| Callograptus | Taxon | 3 | 0.0 |
| Callibrachion | Taxon | 7 | 0.0 |
| Calamops | Taxon | 3 | 0.0 |
| Cacops Aspidephorus | Taxon | 4 | 0.3 |
| Cacops | Taxon | 14 | 0.0 |