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

1890) Synonyms Xenochirus pentacanthus Gilbert, 1890 Asterotheca pentacantha (Gilbert, 1890) Asterotheca pentacanthus (Gilbert, 1890) Xenertmus pentacanthus...

alascanus (Gilbert, 1896) Synonyms Xenochirus alascanus Gilbert, 1896 Asterotheca alascana (Gilbert, 1896) Bathyagonus alascana (Gilbert, 1896) Xenertmus...

infraspinatus (Gilbert, 1904) Synonyms Xeneretmus infraspinatus Gilbert, 1904 Asterotheca infraspinata (Gilbert, 1904) Bathyagonus infraspinata (Gilbert, 1904)...

fern group has a long fossil history with many extinct taxa (Psaronius, Asterotheca, Scolecopteris, Eoangiopteris, Qasimia, Marantoidea, Danaeites, Marattiopsis...

(Walchia, etc.) occupied drier soils, while marattialean ferns (Pecopteris, Asterotheca, etc.) and horsetails (Sphenophyllum, Annularia, Calamites, etc.) were...

sometimes tripinnate. Other leaf taxon associated with Psaronius include: Asterotheca, Acitheca, Remia and Radstockia. Pecopteris polymorpha Pecopteris arborescens...

†Armenoceras †Artisia †Asterotheca †Asterotheca crenulata †Asterotheca cyathea †Asterotheca hemitelliodes †Asterotheca miltoni †Asterotheca oreopteridia †Asteroxylon...

Quemquemtreu area of the Cañadón Pancho locality. These species are: Asterotheca rigbyana, Marattiopsis muensteri, Cladophlebis kurtzii, C. indica, Dictyophyllum...

before extending their range towards inner Pangaea in the south.The fern Asterotheca meriani had resemblance to trees and dominated the delta plain before...

(Winterpock assemblage) Richmond A cyatheaceaen tree fern Cyathoforma (Asterotheca, Asterocarpus) C. carolinensis, C. minuta, C. penticarpa Stagg Creek...

small horsetail (Equisetum) stem fragments, and fern leaves resembling Asterotheca. These are thought to have been brought into the dune field by large...

following fossil flora have been recovered from the formation: Araucarites Asterotheca Cordaites Coricladus Glossopteris Pecopteris Phyllotheca Samaropsis Sphenopteris...

Triassic. The following fossils have been reported from the formation: Asterotheca fuchsii A. rigbyana Baiera africana B. furcata Cladophlebis mendozaensis...

†Asterophyllites grandis †Asterotheca †Asterotheca crenulata †Asterotheca cyathea †Asterotheca hemitelliodes †Asterotheca miltoni †Asterotheca oreopteridia †Asteroxylon...

†Asterophyllites longifolius †Asterotheca †Asterotheca arborescens †Asterotheca hemiteloides – or unidentified comparable form †Asterotheca miltoni – or unidentified...

†Arctinurus †Arthrolycosa – type locality for genus †Artisia †Asterotheca †Asterotheca miltoni – or unidentified comparable form †Asyncritus – type locality...

following genera of fossil flora have been identified in the formation: Asterotheca Cladophlebis Dicroidium Ginkgoites Gleichenites Heidiphyllum Johnstonia...

species †Astartella concentrica †Astartella varica †Astartella vera †Asterotheca †Atactoblatta – type locality for genus †Atactoblatta anomala – type...

type locality for species †Archimylacris †Aristoceras †Artisia †Asterotheca †Asterotheca miltoni – or unidentified comparable form †Aviculopecten †Aviculopecten...

form †Asterophyllites longifolius †Asterophyllites multifolia †Asterotheca †Asterotheca miltoni – or unidentified comparable form †Astraeospongium †Asyncritus...

their fertile organs and fruitifications, lycopods, rare ferns such as Asterotheca hammanskraalensis, horsetail species such as Annularia, cordaitales,...

†Aphetoceras †Aphlebia †Archeognathus – type locality for genus †Artisia †Asterotheca †Athyris †Athyris fultonensis †Athyris lamellosa †Aulochiton – type locality...

†Anthracosaurus †Aphlebia †Archaeothyris †Arctinurus †Armenoceras †Artisia †Asterotheca †Athyris †Atrypa †Atrypa reticularis †Atrypa reticularus – report made...

†Astartella concentrica †Asterophyllites †Asterophyllites equisetiformis †Asterotheca †Astraeospongium †Astrocystites †Athyris †Athyris bradyensis – or unidentified...