Asterotheca is a genus of seedless, spore-bearing, vascularized ferns dating from the Carboniferous of the Paleozoic to the Triassic of the Mesozoic.

This genus of fern lived from the Carboniferous to the Triassic and is an ancestor to all modern seed plants.

[1] Fossilized specimens show large, morphologically complex structures that consist of leaf segments called pinnae.

Asterotheca fronds are unipinnate because there is only a single row of pinnae on each side of the rachis, or main central stem.

In the field of paleobotany, different parts of plant fossils are assigned different taxonomic names based on how they are preserved.

True ferns (Filicales) are vascular plants that reproduce by way of spores that require water to disperse their gametophytes.

Families of ferns are classified according to the arrangement and morphology of their sporangia and are generally categorized into two groups: the eusporangia and leptosprangia.

A, D, E, G and H, probably belong to true Ferns; F is the male fructification of a Pteridosperm (Lyginodendron); the rest are of doubtful nature.