| Polythecophyton Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Euphyllophytes |
| Genus: | †Polythecophyton S.-G. Hao, P.G. Gensel & D.-M. Wang (2001) |
| Species: | †P. demissum |
| Binomial name | |
| †Polythecophyton demissum S.-G. Hao, P.G. Gensel & D.-M. Wang (2001) | |
Polythecophyton was a genus of Early Devonian (420 to 390 million years ago) aneurophyte with branching axes, drooping, many-branched sporangia, but no trace of a vascular system.[1] It grew to several centimetres in length, and its axes were almost a centimeter across.[1]
References
- 1 2 Hao, Shou-Gang (2001). "Polythecophyton demissum, gen. et sp. nov., a new plant from the Lower Devonian (Pragian) of Yunnan, China and its phytogeographic significance". Review of Palaeobotany and Palynology. 116 (1–2): 55–71. doi:10.1016/S0034-6667(01)00062-8.
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