Eophyllophyton

Eophyllophyton Temporal range: Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Fossil specimen of E. bellum, Geological Museum of China
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Euphyllophytes
Genus:	†Eophyllophyton Hao & Beck 1993
Species:	†E. bellum
Binomial name
†Eophyllophyton bellum Hao & Beck 1993

Eophyllophyton bellum is the oldest known plant bearing megaphyllous leaves.^[1][2] In 2013, Hao (one of the original taxon authors) and Xue placed the genus in a new class Eophyllophytopsida, considered to be an isolated lineage in the euphyllophytes.^[3]

References

1. Hao, S.; Beck, C.B. & Deming, W. (2003), "Structure of the Earliest Leaves: Adaptations to High Concentrations of Atmospheric CO₂", International Journal of Plant Sciences, 164 (1): 71–75, doi:10.1086/344557, S2CID 84741832
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
3. 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. 57, 246, ISBN 978-7-03-036616-0, retrieved 2019-10-25