Type species: Trematella glomerata Hall, 1886
This genus includes the species:
| Trematella annulata | (Hall, 1881) | Devonian Eifelian | USA |
| Trematella annulata pronaspina | (Hall, 1881) | Devonian Eifelian | USA |
| Trematella arborea | (Hall, 1881) | Devonian Eifelian | USA |
| Trematella glomerata | Hall, 1886 | Devonian Emsian | USA New York |
| Trematella nodosa | Hall & Simpson, 1887 | Devonian Givetian | USA |
| Trematella perspinulata | (Hall, 1881) | Devonian Givetian | USA |
|
|
|
|