Sphagnopsida
| Sphagnopsida Temporal range:  | |
|---|---|
| A clump of Sphagnum, peat moss | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Division: | Bryophyta | 
| Subdivision: | Sphagnophytina | 
| Class: | Sphagnopsida Ochyra | 
| Orders | |
Sphagnopsida is a class of mosses that includes a single subclass Sphagnidae, with two orders. It is estimated it originated about 465 million years ago, along with Takakia. The order Sphagnales contains four living genera: Ambuchanania, Eosphagnum, and Flatbergium, which counts four species in total, and Sphagnum which contains the rest of the species. The extinct Protosphagnales contains a single fossil species.
| class Sphagnopsida 
 | |
| The phylogenetic position of the Sphagnopsida among the eight classes of mosses, based on inferences from DNA sequence data. |