Protobarinophyton

Protobarinophyton was a genus of Silu-Devonian land plant with branching axes. It is placed in a group of early vascular plants (tracheophytes), the barinophytes, a group that has been given various ranks and scientific names.

Protobarinophyton
Temporal range: Early Devonian
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: †Barinophytes
Genus: †Protobarinophyton

Phylogeny

Kenrick and Crane in 1997 placed the genus Protobarinophyton along with two species of Barinophyton in the Barinophytaceae in their Sawdoniales, well nested within the zosterophylls.[1] A summary cladogram produced by Crane et al. in 2004, shows Protobarinophyton in the core of a paraphyletic stem group of broadly defined zosterophylls, basal to the lycopsids (living and extinct clubmosses and relatives).[2]

lycophytes
 

†Hicklingia

 
 
 

†basal groups (Adoketophyton, Discalis, Distichophytum (=Rebuchia), Gumuia, Huia, Zosterophyllum myretonianum, Z. llanoveranum, Z. fertile)

 
 

†'core' zosterophylls (Zosterophyllum divaricatum, Tarella, Oricilla, Gosslingia, Hsua, Thrinkophyton, Protobarinophyton, Barinophyton obscurum, B. citrulliforme, Sawdonia, Deheubarthia, Konioria, Anisophyton, Serrulacaulis, Crenaticaulis)

 
 
 

†basal groups (Nothia, Zosterophyllum deciduum)

 
 

lycopsids (extant and extinct members)

 
 
 
 

The phylogenetic position of the barinophytes remains disputed. Taylor et al. in 2009 considered the barinophytes to be possible lycopsids rather than zosterophylls.[3] Hao and Xue in 2013 suggested that they were not lycopsids, instead falling between this group and the euphyllophytes.[4]

gollark: Even if you want progressive tax it could at least be a simple quadratic and not the accursed mess of horribleness.
gollark: The incentives to make it actually simple and coherent are lacking.
gollark: It's like those newspapers which will let you subscribe online but call their phone line at a certain time to unsubscribe.
gollark: Governments apparently don't like you if you decide you want to unsubscribe.
gollark: I'm not sure how "doxxing" would be the appropriate response here, yes.

References
  1. Kenrick, Paul & Crane, Peter R. (1997). The Origin and Early Diversification of Land Plants: A Cladistic Study. Washington, D.C.: Smithsonian Institution Press. p. 172. ISBN 978-1-56098-730-7.
  2. Crane, P.R.; Herendeen, P. & Friis, E.M. (2004). "Fossils and plant phylogeny". American Journal of Botany. 91 (10): 1683–99. doi:10.3732/ajb.91.10.1683. PMID 21652317. Retrieved 2011-01-27.CS1 maint: ref=harv (link)
  3. Taylor, T.N.; Taylor, E.L. & Krings, M. (2009). Paleobotany, The Biology and Evolution of Fossil Plants (2nd ed.). Amsterdam; Boston: Academic Press. pp. 325–326. ISBN 978-0-12-373972-8.
  4. Hao, Shougang & Xue, Jinzhuang (2013). The early Devonian Posongchong flora of Yunnan: a contribution to an understanding of the evolution and early diversification of vascular plants. Beijing: Science Press. pp. 55, 246. ISBN 978-7-03-036616-0. Retrieved 2019-10-28.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.