Asterotheca
| Asterotheca Temporal range: Carboniferous to Triassic | |
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| Asterotheca cyathea | |
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| Family: | Asterothecaceae |
| Genus: | Asterotheca |
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Asterotheca is a genus of seedless, spore-bearing, vascularized ferns dating from the Carboniferous of the Paleozoic to the Triassic of the Mesozoic.