Type species: Leiosella rostrifera Canu & Bassler, 1917
| Synonyms | Author | Type Species |
|---|---|---|
| Leiosella | Canu & Bassler, 1917 | Leiosella rostrifera Canu & Bassler, 1917 |
This genus includes the species:
| Canu & Bassler, 1923 | Neogene Miocene | USA Florida | WoRMS 1404523 | |
| Canu & Bassler, 1920 | Paleogene Oligocene Rupelian | USA Alabama | WoRMS 1404524 | |
| Canu & Bassler, 1920 | Paleogene Oligocene Rupelian | USA Mississippi | WoRMS 1404525 | |
| Martha, Sanner, Cheetham & Scholz, 2025 | Paleogene Paleocene Thanetian | USA New Jersey | WoRMS 1826071 | |
| Canu & Bassler, 1917 | Paleogene Oligocene Rupelian | USA Alabama | WoRMS 1404526 |
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| Leiosellina rostrifera (thanks to Dennis Gordon) |
Harmer notebook - entry for Leiosella