mammifères
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Balangir | Concept | 1 | 0.1 |
| Baker | Objet | 15 | 3.6 |
| Bai Yun | Objet | 6 | 0.4 |
| Bagri | Concept | 1 | 0.2 |
| Bagnolese | Concept | 3 | 0.1 |
| Avranchin | Concept | 3 | 3.1 |
| Avispado | Objet | 3 | 1.8 |
| Australosphenida | Taxon | 22 | 1.3 |
| Aure et Campan | Concept | 2 | 0.9 |
| Auditor | Objet | 3 | 0.0 |
| Atopogale Cubana | Taxon | 5 | 0.5 |
| Atlantogenata | Taxon | 25 | 1.3 |
| Atilax Paludinosus | Taxon | 40 | 1.9 |
| Atelerix Sclateri | Taxon | 28 | 0.6 |
| Atelerix Frontalis | Taxon | 31 | 0.8 |
| Atelerix | Taxon | 28 | 3.3 |
| Astrapotherium | Taxon | 17 | 1.2 |
| Astrapotheria | Taxon | 20 | 0.4 |
| Asoriculus Corsicanus | Taxon | 4 | 1.3 |
| Asoriculus | Taxon | 4 | 0.2 |
| Askanian | Concept | 12 | 0.5 |
| Ashera | Objet | 7 | 24.3 |
| Arunachali | Concept | 1 | 0.1 |
| Arturo | Objet | 6 | 0.4 |
| Artiodactyla | Taxon | 116 | 60.7 |
| Arsinoitherium | Taxon | 30 | 3.4 |
| Arsinoitheriidae | Taxon | 15 | 0.6 |
| Argos | Concept | 1 | 0.1 |
| Ardes | Concept | 2 | 2.1 |
| Ardennais Roux | Concept | 2 | 4.8 |
| Arctoidea | Taxon | 24 | 2.5 |
| Arctogalidia Trivirgata | Taxon | 39 | 1.1 |
| Arctocyon | Taxon | 15 | 2.2 |
| Arctocephalus Philippii | Taxon | 37 | 1.3 |
| Arctocephalus Galapagoensis | Taxon | 38 | 1.3 |
| Arctocephalus | Taxon | 35 | 5.5 |
| Arctocephalinae | Taxon | 42 | 7.2 |
| Arctictis Binturong Whitei | Taxon | 7 | 0.0 |
| Arcott Canadien | Concept | 5 | 0.5 |
| Archonta | Taxon | 14 | 2.2 |
| Archaeotherium | Taxon | 23 | 3.0 |
| Archaeopithecidae | Taxon | 9 | 0.7 |
| Archaeohyracidae | Taxon | 8 | 0.3 |
| Apure | Objet | 5 | 0.5 |
| Apterodontinae | Taxon | 5 | 0.0 |
| Apterodon | Taxon | 8 | 0.0 |
| Apatemys | Taxon | 6 | 0.6 |
| Antilopes | Concept | 94 | 106.9 |
| Antilocapridae | Taxon | 37 | 6.2 |
| Antilocapra Pacifica | Taxon | 5 | 0.0 |