Protobarinophyton

{{Automatic taxobox

| fossil_range = {{Geological range/linked|Early Devonian}}

| taxon = Protobarinophyton

| authority = Ananiev (1955)

| type_species = Protobarinophyton obrutschevii

| type_species_authority = (Ananiev 1954) Ananiev (1955)

| subdivision_ranks = Species

| subdivision =

†P. timanicum Petrosjan 1968
†P. obrutschevii (Ananiev 1954) Ananiev (1955)
†P. o. f. minutum Petrosjan (1962)
†P. o. f. mucronatum Petrosjan (1962)

}}

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.

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. 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).

{{clade

| label1=lycophytes

| 1={{Clade lycophyte}}

}}

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

References

{{Reflist| refs=

{{Citation |mode=cs1 |last1=Crane |first1=P.R. |last2=Herendeen |first2=P. |last3=Friis |first3=E.M. |date=2004 |title=Fossils and plant phylogeny |journal=American Journal of Botany |volume=91 |issue=10 |pages=1683–99 |doi=10.3732/ajb.91.10.1683 |pmid=21652317 |name-list-style=amp |doi-access=free }}

{{Citation |mode=cs1 |last1=Hao |first1=Shougang |last2=Xue |first2=Jinzhuang |date=2013 |title=The early Devonian Posongchong flora of Yunnan: a contribution to an understanding of the evolution and early diversification of vascular plants |location=Beijing |publisher=Science Press |isbn=978-7-03-036616-0 |url=https://www.researchgate.net/publication/269875285 |access-date=2019-10-28|name-list-style=amp |pages=55, 246 }}

{{Citation |mode=cs1 |last1=Kenrick |first1=Paul |last2=Crane |first2=Peter R. |year=1997 |title=The Origin and Early Diversification of Land Plants: A Cladistic Study |location=Washington, D.C. |publisher=Smithsonian Institution Press |isbn=978-1-56098-730-7 |name-list-style=amp |page=172}}

{{Citation |mode=cs1 |last1=Taylor |first1=T.N. |last2=Taylor |first2=E.L. |last3=Krings |first3=M. |year=2009 |title=Paleobotany, The Biology and Evolution of Fossil Plants |edition=2nd |location=Amsterdam; Boston |publisher=Academic Press |isbn=978-0-12-373972-8 |pages=325–326 |name-list-style=amp }}

}}

External links

[https://archive.today/20121204162818/http://www.amjbot.org/content/vol91/issue10/images/large/abot-91-10-04-f01.jpeg Cladogram] from {{Harvnb|Crane|Herendeen|Friis|2004}}

Category:Devonian plants

Category:Prehistoric plant genera