mammifères
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Brachypotherium | Taxon | 11 | 0.1 |
| Bradypus | Taxon | 35 | 18.9 |
| Brasilestes Stardusti | Taxon | 5 | 0.4 |
| Braunes Bergschaf | Concept | 6 | 0.6 |
| Brebis Landaise | Concept | 4 | 3.9 |
| Brigasque | Concept | 4 | 2.1 |
| Britches | Objet | 7 | 2.1 |
| Brontotheriidae | Taxon | 36 | 3.6 |
| Brun Noir du Jura | Concept | 5 | 2.3 |
| Bubble Eye | Concept | 12 | 6.9 |
| Buccleuch Avon | Objet | 1 | 0.2 |
| Bugtilemur | Taxon | 5 | 0.3 |
| Bullenbeißer | Objet | 17 | 34.1 |
| Bunte Deutsche Edelziege | Concept | 3 | 0.9 |
| Bébert | Objet | 1 | 12.1 |
| Cabassous | Taxon | 31 | 1.1 |
| Cabassous Centralis | Taxon | 31 | 0.5 |
| Cabassous Chacoensis | Taxon | 32 | 0.4 |
| Cabassous Tatouay | Taxon | 29 | 0.7 |
| Cabassous Unicinctus | Taxon | 30 | 0.4 |
| Cacareco | Objet | 13 | 1.2 |
| Cachou | Objet | 3 | 1.5 |
| Cadurcotherium | Taxon | 4 | 0.3 |
| Caesar | Objet | 6 | 0.0 |
| Cainotheriidae | Taxon | 12 | 0.3 |
| Cainotherium | Taxon | 10 | 0.3 |
| Calcochloris | Taxon | 18 | 0.7 |
| Calcochloris Obtusirostris | Taxon | 22 | 0.2 |
| Callosciurus | Taxon | 32 | 0.5 |
| Callosciurus Honkhoaiensis | Taxon | 8 | 0.0 |
| Calyptophractus | Taxon | 4 | 0.5 |
| Calyptophractus Retusus | Taxon | 31 | 0.5 |
| Camarina | Objet | 1 | 1.0 |
| Camelidae | Taxon | 77 | 54.9 |
| Campagnol | Concept | 16 | 140.4 |
| Canidé | Taxon | 123 | 162.4 |
| Caniformia | Taxon | 71 | 60.9 |
| Cannelle | Objet | 4 | 27.1 |
| Cannellito | Objet | 2 | 2.6 |
| Capromeryx Minor | Taxon | 10 | 0.2 |
| Caramelles | Objet | 3 | 0.0 |
| Carmen Camacho | Concept | 2 | 0.7 |
| Carnivores | Taxon | 131 | 112.4 |
| Carpitalpa | Taxon | 22 | 0.5 |
| Carranzana | Concept | 1 | 0.6 |
| Carsioptychus Coarctatus | Taxon | 4 | 0.0 |
| Casper | Objet | 7 | 0.5 |
| Castillonnaise | Concept | 3 | 0.5 |
| Catagonus | Taxon | 8 | 0.9 |
| Catalane | Concept | 2 | 3.0 |