-
genus Pachydermophyllum may also have
affinities to the
peltasperms. The
morphology of
peltasperm leaves is
highly variable,
ranging from
dissected pinnate...
- stem-group angiosperm. However, a
recent reinvestigation suggests it is a
peltasperm (a type of "seed fern") that
convergently evolved angiosperm-like veins...
-
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...
-
genus Permophyllocladus and
problems of the
evolutionary morphology of
peltasperms".
Paleontological Journal. 41 (2): 198–206. doi:10.1134/S0031030107020104...
-
fragments A
possible peltasperm D.
lunensis Ischigualasto Provincial Park (San Juan Province)
Frond fragments A
possible peltasperm Dicroidium D. argenteum...
-
sites are
dominated by
walchian conifers, Taeniopteris, and "comioid"
peltasperms (Auritifolia).
Others have a high
proportion of
woody gigantopterids...
- s****lines.
Autunia A. cf.
conferta Geraldine,
Coprolite Foliage of a
peltasperm "seed fern",
previously considered a
species of Callipteris. Abundant...
- of
Umaltolepis has been
noted to be
similar to
those of some
extinct Peltasperms and Umkomasiales,
while leaves and the
attachment of the
leaves to the...
- Viktoras; Blake,
Bascombe M.; Cecil, C.
Blaine (2013). "Callipterid
peltasperms of the
Dunkard Group,
Central Appalachian Basin".
International Journal...
