fossiles
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Consobrinomia | Taxon | 3 | 0.1 |
| Conodontophorida | Taxon | 3 | 0.1 |
| Conodonti | Taxon | 1 | 0.0 |
| Conodonta | Taxon | 39 | 7.8 |
| Conochitininae | Taxon | 2 | 0.0 |
| Conochitinidae | Taxon | 2 | 0.0 |
| Conochitina | Taxon | 3 | 0.0 |
| Compsocerops | Taxon | 9 | 0.0 |
| Colosteus | Taxon | 9 | 0.0 |
| Colosteidae | Taxon | 13 | 0.1 |
| Colobodectes | Taxon | 4 | 0.0 |
| Coelolepidae | Taxon | 4 | 0.0 |
| Coelacanthidae | Taxon | 12 | 0.7 |
| Cochleosaurus | Taxon | 7 | 1.0 |
| Coccosteus | Taxon | 12 | 1.1 |
| Cloudina | Taxon | 12 | 1.0 |
| Climatius | Taxon | 20 | 0.4 |
| Climacograptus | Taxon | 4 | 0.1 |
| Clelandina | Taxon | 8 | 0.2 |
| Clavelinidae | Taxon | 12 | 0.4 |
| Clavelina Moluccensis | Taxon | 9 | 0.0 |
| Clavelina Lepadiformis | Taxon | 10 | 0.9 |
| Clavelina Elegans | Taxon | 7 | 0.2 |
| Clavelina Dellavallei | Taxon | 6 | 0.4 |
| Clavelina | Taxon | 11 | 0.8 |
| Clarkina | Taxon | 2 | 0.0 |
| Clarkeipterus | Taxon | 3 | 0.2 |
| Clamorosaurus | Taxon | 7 | 0.0 |
| Cladospongia Alaskensis | Taxon | 3 | 0.2 |
| Cladangia Semispherica | Taxon | 1 | 0.0 |
| Cistecephalus | Taxon | 13 | 0.6 |
| Cionidae | Taxon | 10 | 0.1 |
| Cione | Taxon | 19 | 2.9 |
| Ciona | Taxon | 10 | 1.1 |
| Chthonosauridae | Taxon | 2 | 0.0 |
| Chroniosuchus | Taxon | 8 | 0.1 |
| Chroniosuchidae | Taxon | 9 | 0.5 |
| Chroniosuchia | Taxon | 9 | 0.3 |
| Chroniosaurus | Taxon | 8 | 0.0 |
| Chondrichthyes | Taxon | 92 | 65.7 |
| Chomatobatrachus | Taxon | 4 | 0.1 |
| Choia | Taxon | 7 | 0.6 |
| Chlynovia | Taxon | 5 | 0.0 |
| Chitinozoaire | Taxon | 15 | 1.7 |
| Chirognathidae | Taxon | 2 | 0.0 |
| Chiosella | Taxon | 2 | 0.0 |
| Chinlea | Taxon | 7 | 0.0 |
| Chiniquodontidae | Taxon | 11 | 0.6 |
| Chiniquodon | Taxon | 14 | 0.3 |
| Chien de Bonn-oberkassel | Structure Anatomique | 7 | 0.0 |