-
Asterotheca is a
genus of seedless, spore-bearing,
vascularized ferns dating from the
Carboniferous of the
Paleozoic to the Tri****ic of the Mesozoic....
- 1890)
Synonyms Xenochirus pentacanthus Gilbert, 1890
Asterotheca pentacantha (Gilbert, 1890)
Asterotheca pentacanthus (Gilbert, 1890)
Xenertmus pentacanthus...
- alasc**** (Gilbert, 1896)
Synonyms Xenochirus alasc**** 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)...
-
sometimes tripinnate.
Other leaf
taxon ****ociated with
Psaronius include:
Asterotheca, Acitheca,
Remia and Radstockia.
Pecopteris polymorpha Pecopteris arborescens...
- 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...
- (Winterpock ****emblage)
Richmond A
cyatheaceaen tree fern
Cyathoforma (
Asterotheca, Asterocarpus) C. carolinensis, C. minuta, C.
penticarpa Stagg Cr****...
-
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...
