Peltaspermaceae

Peltaspermaceae is a natural family of seed ferns (Pteridospermophyta) widespread in both northern and southern hemispheres coal measures of Permian and Triassic age.

Peltaspermaceae

Peltaspermaceae is a natural family of seed ferns (Pteridospermophyta) widespread in both northern and southern hemispheres coal measures of Permian and Triassic age.