Kingdom Plantae Order †Peltaspermales | Phylum †Pteridospermophyta Rank Family | |
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Similar Corystospermaceae, Peltaspermales, Lyginopteridaceae, Lepidopteris, Sphaerocarpaceae | ||
Peltaspermaceae is a natural family of seed ferns (Pteridospermophyta) widespread in both northern and southern hemispheres coal measures of Permian and Triassic age.
Description
Peltaspermaceae have umbrella-like (peltate) cupules with numerous pendant ovules born in complex large branching structures (Peltaspermum). The pollen organ (Antevsia) has radiating cigar-shaped pollen sacs attached to small blades, again in complex branching structures. The leaves (Lepidopteris) are bipinnate to tripinnate with small pinnules on the rachis.
References
Peltaspermaceae Wikipedia(Text) CC BY-SA