n.1.(Paleon.) An extinct genus of tree ferns with large, two-ranked leaves, or fronds.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
On the nature of the stems of Ulodendron, Bothrodendron and Megaphyton. Monthly Microscopical Journal, 2, pp.
448, 486) also discovered a second taxon, Megaphyton magnificum, which he described in detail based on a single specimen.
As Dawson's morphospecies is based on a specimen that is now believed lost, no attempt is made here to formally transfer Megaphyton magnificum, even though it is clear that his specimen belongs to the morphogenus Artisophyton.
Reconstitutions de pecopteridees: genres Caulopteris Lindley and Hutton, Megaphyton Artis et Hagiophyton nov.