Thrinkophyton

Thrinkophyton was a genus of Early Devonian land plant with branching axes.^[2] Known fossils are of Lochkovian to Pragian age (419 to 408 million years ago).^[3]

Thrinkophyton Temporal range: Early Devonian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Lycophytes
Plesion:	†Zosterophylls
Genus:	†Thrinkophyton

A cladogram published in 2004 by Crane et al. places Thrinkophyton in the core of a paraphyletic stem group of broadly defined "zosterophylls", basal to the lycopsids (living and extinct clubmosses and relatives).^[4]

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

Hao and Xue in 2013 listed the genus as a zosterophyll.^[1]

References

1. 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, p. 329, ISBN 978-7-03-036616-0, retrieved 2019-10-25
2. Boyce, C.K. (2008). "How green was Cooksonia? The importance of size in understanding the early evolution of physiology in the vascular plant lineage". Paleobiology. 34 (2): 179–194. doi:10.1666/0094-8373(2008)034[0179:HGWCTI]2.0.CO;2. ISSN 0094-8373.
3. Hao & Xue (2013), p. 329.
4. 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.

External links

• Cladogram from Crane, Herendeen & Friis 2004