Definition of Peltasperm. Meaning of Peltasperm. Synonyms of Peltasperm

- 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...
- fragments A possible peltasperm D. lunensis Ischigualasto Provincial Park (San Juan Province) Frond fragments A possible peltasperm Dicroidium D. argenteum...
- Peltasperm fronds Uralophyllum U. magnifolium Peltasperm fronds U. petiolatum Peltasperm fronds U. radczenkoi Peltasperm fronds U. ramosum Peltasperm...
- sites are dominated by walchian conifers, Taeniopteris, and "comioid" peltasperms (Auritifolia). Others have a high proportion of woody gigantopterids...
- genus Permophyllocladus and problems of the evolutionary morphology of peltasperms". Paleontological Journal. 41 (2): 198–206. doi:10.1134/S0031030107020104...
- 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...
- s****lines. Autunia A. cf. conferta Geraldine, Coprolite Foliage of a peltasperm "seed fern", previously considered a species of Callipteris. Abundant...
- species to Dicroidium. Lepidopteris L. stormbergensis San Juan Leaves of a peltasperm "seed fern". Michelilloa M. waltonii San Juan Silicified stem. A cycad...