-
synangium is an
archaic character, very
similar to some of the
fossil Asterothecaceae/Psaroniaceae, such as Scolecopteris.
Christensenia itself has no fossil...
- dehiscence. Some
sources merge the
family into a much
larger family,
Asterothecaceae.
Fossil genera of the
family include:
Psaronius Cotta – Carboniferous-Permian...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
- Division:
Pteridophyta class:
Filicopsida Order:
Marattiales Family:
Asterothecaceae Genus:
Asterotheca Species A.
aspidioides A.
candolleana A. cyathea...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
-
Marattiales †Knorripteridaceae †Pecopteridaceae †Ptychocarpaceae †Weichseliaceae †
Asterothecaceae †Danaeopsidaceae Marattiaceae...
