Haplomitriopsida

Haplomitriopsida; Amrediad amseryddol: ; y Permaidd cynnar i'r presennol
	Llabedlys Hooker
Dosbarthiad gwyddonol
Teyrnas:	Plantae
Rhaniad:	Marchantiophyta
Enw deuenwol
	Treubiopsida;

Mae Haplomitriopsida yn ddosbarth newydd o lysiau'r afu sy'n cynnwys 3 genera, ac ynddynt ceir 15 rhywogaeth. Yn dilyn datblygiadau gwyddonol diweddar, yn enwedig ym maes dadansoddi mitocondria'r genynnau, gosodwyd y grŵp monoffyletig hwn yn chwaer-grŵp gwaelodol i weddill llysiau'r afu. Mae'r grŵp hwn, felly, yn agoriad llygad i'r modd yr esblygodd llysiau'r afu yn gynnar iawn yn y Permaidd cynnar.^[1]^[2]^[3]^[4]

↑ Heinrichs, Jochen; S. Robbert Gradstein; Rosemary Wilson; Harald Schneider (2005). "Towards a natural classification of liverworts (Marchantiophyta) based on the chloroplast gene rbcL". Cryptogamie Bryologie 26 (2): 131–150.
↑ He-Nygrén, Xiaolan; Aino Juslén; Inkeri Ahonen; David Glenny; Sinikka Piippo (2006). "Illuminating the evolutionary history of liverworts (Marchantiophyta)—towards a natural classification". Cladistics 22 (1): 1–31. doi:10.1111/j.1096-0031.2006.00089.x.
↑ Forrest, Laura L.; Christine E. Davis; David G. Long; Barbara J. Crandall-Stotler; Alexandra Clark; Michelle L. Hollingsworth (2006). "Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses". The Bryologist 109 (3): 303–334. doi:10.1639/0007-2745(2006)109[303:UTEHOT]2.0.CO;2.
↑ Renzaglia, Karen S.; Scott Schuette; R. Joel Duff; Roberto Ligrone; A. Jonathan Shaw; Brent D. Mishler; Jeffrey G. Duckett (2007). "Bryophyte phylogeny: Advancing the molecular and morphological frontiers". The Bryologist 110 (2): 179–213. doi:10.1639/0007-2745(2007)110[179:BPATMA]2.0.CO;2. https://archive.org/details/sim_bryologist_summer-2007_110_2/page/179.

[Heinrichs_2005-1] Heinrichs, Jochen; S. Robbert Gradstein; Rosemary Wilson; Harald Schneider (2005). "Towards a natural classification of liverworts (Marchantiophyta) based on the chloroplast gene rbcL". Cryptogamie Bryologie 26 (2): 131–150.

[He-Nygrén_2006-2] He-Nygrén, Xiaolan; Aino Juslén; Inkeri Ahonen; David Glenny; Sinikka Piippo (2006). "Illuminating the evolutionary history of liverworts (Marchantiophyta)—towards a natural classification". Cladistics 22 (1): 1–31. doi:10.1111/j.1096-0031.2006.00089.x.

[Forrest_2006-3] Forrest, Laura L.; Christine E. Davis; David G. Long; Barbara J. Crandall-Stotler; Alexandra Clark; Michelle L. Hollingsworth (2006). "Unraveling the evolutionary history of the liverworts (Marchantiophyta): multiple taxa, genomes and analyses". The Bryologist 109 (3): 303–334. doi:10.1639/0007-2745(2006)109[303:UTEHOT]2.0.CO;2.

[Renzaglia_2007-4] Renzaglia, Karen S.; Scott Schuette; R. Joel Duff; Roberto Ligrone; A. Jonathan Shaw; Brent D. Mishler; Jeffrey G. Duckett (2007). "Bryophyte phylogeny: Advancing the molecular and morphological frontiers". The Bryologist 110 (2): 179–213. doi:10.1639/0007-2745(2007)110[179:BPATMA]2.0.CO;2. https://archive.org/details/sim_bryologist_summer-2007_110_2/page/179.

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