From Wikipedia, the free encyclopedia
Haplostigma is a genus of arborescent lycopod, found only in the early part of the Middle Devonian.[1]
[edit] References
- ^ Woolfe, K.J. (1993). "Devonian depositional environments in the Darwin Mountains: Marine or non-marine?". Antarctic Science 5 (02): 211-220. doi:10.1017/S0954102093000276.