| Name | Helicodontium compactum Thériot |
| Authorship | Thériot |
| Rank | Species |
| Placed in | Helicodontium |
| Citation | 1932 Rev. Bryol. Lichenol. 5: 106 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Helicodontium compactum Thériot |
| Identification made in | [no date] (1) |