Gumuia
Extinct genus of spore-bearing plants
title: "Gumuia" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["early-devonian-plants", "zosterophylls", "prehistoric-lycophyte-genera"] description: "Extinct genus of spore-bearing plants" topic_path: "general/early-devonian-plants" source: "https://en.wikipedia.org/wiki/Gumuia" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Extinct genus of spore-bearing plants ::
| taxon = Gumuia | fossil_range = | authority = S.G.Hao (1989) | subdivision_ranks = Species | subdivision = †G. zyzzata S.G.Hao (1989)
Gumuia is a genus of extinct vascular plants of the Early Devonian (Pragian or Siegenian, around ). The genus was first described in 1989 based on fossil specimens from the Posongchong Formation, Wenshan district, Yunnan, China.
Description and phylogeny
The sporophyte of G. zyzzata consisted of leafless stems (axes) with an apparently sympodial organization. Fertile stems had a spike-like organization, with both lateral and terminal sporangia (spore-forming organs); successive sporangia developed on alternate sides of short stems. The genus was tentatively placed in the "zosterophylls".
A cladogram published in 2004 by Crane et al. places Gumia in a paraphyletic stem group of broadly defined "zosterophylls", basal to the lycopsids (living and extinct clubmosses and relatives). | label1=lycophytes | 1= Hao and Xue in 2013 listed the genus as a zosterophyll.
References
References
- Hao, Shou-Gang. (1989). "Gumuia zyzzata—a new plant from the Lower Devonian of Yunnan, China". Acta Botanica Sinica.
- (2004). "Fossils and plant phylogeny". American Journal of Botany.
- (2013). "The early Devonian Posongchong flora of Yunnan: a contribution to an understanding of the evolution and early diversification of vascular plants". Science Press.
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