Haplostigma is a genus of arborescent lycopodiopsid, found only in the early part of the Middle Devonian.[1]
| Haplostigma Temporal range: Middle Devonian | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Genus: | †Haplostigma |
References
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