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CCDB → Bryophytes → Splachnaceae → Tetraplodon
| Taxon name | Status | Median (n) |
| Tetraplodon angustatus (Hedw.) Bruch & Schimp. | Accepted | 10 |
| Tetraplodon mnioides (Sw.) Bruch & Schimp. | Accepted | 11 |
| Tetraplodon paradoxus (R. Br.) I. Hagen | Accepted | 11 |
| Tetraplodon angustatus | Synonym of Tetraplodon angustatus (Hedw.) Bruch & Schimp. | 10 |