mammifères
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Antilocapra Americana | Taxon | 63 | 23.3 |
| Antilocapra | Taxon | 10 | 0.3 |
| Anthracotherium | Taxon | 19 | 3.2 |
| Anthracotheriidae | Taxon | 27 | 1.5 |
| Antarctodon | Taxon | 6 | 0.2 |
| Anourosorex Squamipes | Taxon | 22 | 0.3 |
| Anourosorex | Taxon | 21 | 1.0 |
| Anoplotherium | Taxon | 12 | 0.6 |
| Anoplotheriidae | Taxon | 10 | 0.4 |
| Anisodon | Taxon | 12 | 0.0 |
| Angora | Concept | 38 | 18.4 |
| Anglo-français | Concept | 9 | 9.3 |
| Anebodon | Taxon | 3 | 0.1 |
| Andrewsarchus | Taxon | 30 | 11.8 |
| Ancylotherium | Taxon | 18 | 2.9 |
| Anachlysictis | Taxon | 10 | 0.1 |
| Amynodontidae | Taxon | 19 | 2.1 |
| Amphitragulus | Taxon | 5 | 0.2 |
| Amphilestes Broderipii | Taxon | 7 | 0.0 |
| Amphilestes | Taxon | 10 | 0.0 |
| Amphicyoninae | Taxon | 8 | 0.1 |
| Amphicyonidae | Taxon | 30 | 4.1 |
| Amphicyon | Taxon | 23 | 5.5 |
| Amphicynodontidae | Taxon | 14 | 0.9 |
| Amphictis | Taxon | 8 | 0.5 |
| Amphictinae | Taxon | 1 | 0.4 |
| Ampelomeryx Ginsburgi | Taxon | 4 | 1.2 |
| Ampelomeryx | Taxon | 7 | 0.0 |
| Ambondro | Taxon | 7 | 0.6 |
| Amblysomus Hottentotus | Taxon | 23 | 0.0 |
| Amblysomus | Taxon | 21 | 1.0 |
| Amblysominae | Taxon | 6 | 0.0 |
| Altamurana | Concept | 4 | 0.1 |
| Alpine | Concept | 12 | 39.7 |
| Alpagota | Concept | 4 | 0.0 |
| Alopecocyon | Taxon | 5 | 0.3 |
| Almiqui Paradoxal | Taxon | 38 | 4.5 |
| Allotheria | Taxon | 22 | 3.7 |
| Alcarreña | Concept | 4 | 0.7 |
| Albert Ii | Objet | 8 | 0.0 |
| Albanosmilus | Taxon | 9 | 0.7 |
| Ajjer | Concept | 1 | 0.3 |
| Ailurus Styani | Taxon | 8 | 0.0 |
| Ailurus Fulgens | Taxon | 111 | 305.2 |
| Ailurus | Taxon | 12 | 1.4 |
| Ailurinae | Taxon | 7 | 0.4 |
| Ailuridae | Taxon | 35 | 30.7 |
| Ahmed | Objet | 4 | 1.5 |
| Agriniou | Concept | 1 | 0.2 |
| Agneau de Sisteron | Concept | 2 | 9.3 |