gastéropodes
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Scutus Unguis | Taxon | 8 | 0.3 |
| Scyllaea | Taxon | 7 | 0.1 |
| Scyllaeidae | Taxon | 10 | 0.1 |
| Segmentina | Taxon | 4 | 0.2 |
| Seguenzioidea | Taxon | 9 | 0.2 |
| Selenochlamys Ysbryda | Taxon | 15 | 0.7 |
| Semicassis | Taxon | 8 | 0.6 |
| Semicassis Saburon | Taxon | 6 | 0.2 |
| Semisulcospira Libertina | Taxon | 10 | 0.2 |
| Separatista | Taxon | 7 | 0.1 |
| Septa | Taxon | 6 | 0.4 |
| Septaria | Taxon | 8 | 0.2 |
| Septaria Borbonica | Taxon | 6 | 0.0 |
| Sermyla | Taxon | 5 | 0.0 |
| Serratovolva | Taxon | 4 | 0.3 |
| Setia | Taxon | 11 | 0.1 |
| Sigapatella | Taxon | 7 | 0.3 |
| Sigatica | Taxon | 9 | 0.0 |
| Sigmurethra | Taxon | 9 | 0.8 |
| Siliquariidae | Taxon | 13 | 0.0 |
| Simnia | Taxon | 9 | 0.2 |
| Simnialena | Taxon | 9 | 0.1 |
| Sinezona Iota | Taxon | 7 | 0.0 |
| Sinistrofulgur Perversum | Taxon | 5 | 0.6 |
| Sinuber | Taxon | 5 | 0.1 |
| Sinum | Taxon | 11 | 0.0 |
| Sinustrombus | Taxon | 7 | 0.3 |
| Sinustrombus Sinuatus | Taxon | 11 | 0.4 |
| Siphonariida | Taxon | 4 | 0.1 |
| Siphonochelus | Taxon | 6 | 0.3 |
| Siphonochelus Angustus | Taxon | 5 | 0.2 |
| Siphopteron | Taxon | 6 | 0.2 |
| Siratus | Taxon | 8 | 0.2 |
| Sirius | Taxon | 3 | 0.1 |
| Skenella | Taxon | 5 | 0.1 |
| Skeneopsidae | Taxon | 6 | 0.1 |
| Skeneopsis | Taxon | 7 | 0.1 |
| Smaragdia | Taxon | 8 | 0.3 |
| Smaragdinella | Taxon | 5 | 0.3 |
| Solatopupa | Taxon | 6 | 0.3 |
| Solatopupa Similis | Taxon | 6 | 0.3 |
| Soleniscidae | Taxon | 4 | 0.0 |
| Sorbeoconcha | Taxon | 18 | 0.3 |
| Sphaeronassa Mutabilis | Taxon | 2 | 0.0 |
| Sphincterochila Zonata | Taxon | 3 | 0.0 |
| Spinoaglaja | Taxon | 3 | 0.1 |
| Spiraxidae | Taxon | 10 | 0.0 |
| Spurilla | Taxon | 10 | 0.5 |
| Staphylaea | Taxon | 9 | 0.6 |
| Staphylaea Staphylaea | Taxon | 8 | 0.2 |