Polythecophyton

Polythecophyton; Temporal range: Pragian PreꞒ Ꞓ O S D C P T J K Pg N ↓
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

^ ^a ^b 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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[Hao2001-1] 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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