Haplostigma is a genus of arborescent lycopodiopsid, found only in the early part of the Middle Devonian.[1]
| Haplostigma Temporal range: Middle Devonian
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|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Genus: | †Haplostigma |
References
edit- ^ Woolfe, K.J. (1993). "Devonian depositional environments in the Darwin Mountains: Marine or non-marine?". Antarctic Science. 5 (2): 211–220. Bibcode:1993AntSc...5..211W. doi:10.1017/S0954102093000276. S2CID 129509428.
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