-
genus Pachydermophyllum may also have
affinities to the
peltasperms. The
morphology of
peltasperm leaves is
highly variable,
ranging from
dissected pinnate...
-
highly distinct reproductive structures with
similarities to
those of
peltasperm and
corystosperm seed ferns, has been
suggested to be a
member of Ginkgoales...
-
Peltasperm fronds Uralophyllum U.
magnifolium Peltasperm fronds U.
petiolatum Peltasperm fronds U.
radczenkoi Peltasperm fronds U.
ramosum Peltasperm...
- stem-group angiosperm. However, a
recent reinvestigation suggests it is a
peltasperm (a type of "seed fern") that
convergently evolved angiosperm-like veins...
-
genus Permophyllocladus and
problems of the
evolutionary morphology of
peltasperms".
Paleontological Journal. 41 (2): 198–206. doi:10.1134/S0031030107020104...
-
species to Dicroidium.
Lepidopteris L.
stormbergensis San Juan
Leaves of a
peltasperm "seed fern".
Michelilloa M.
waltonii San Juan
Silicified stem. A cycad...
- ("seed fern")
genus of
fossil leaves. It has
either been
aligned with the
peltasperms or the corystosperms.
Pachypteris is
represented by hypostomatic, bipinnate...
-
organ of
corystosperm seed ferns),
Antevsia (the
pollen organ of the
peltasperm Lepidopteris), the
enigmatic pollen organs Pteroma,
Pramelreuthia and...
- s****lines.
Autunia A. cf.
conferta Geraldine,
Coprolite Foliage of a
peltasperm "seed fern",
previously considered a
species of Callipteris. Abundant...
-
sites are
dominated by
walchian conifers, Taeniopteris, and "comioid"
peltasperms (Auritifolia).
Others have a high
proportion of
woody gigantopterids...
