| Crossotheca
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| Specimen P 30369 (left) and the pollen bearing organs of C. hughesiana from Dudley, England | |
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| Reconstruction of C. höninghausi | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | †Pteridospermatophyta |
| Class: | †Lyginopteridopsida |
| Order: | †Lyginopteridales |
| Genus: | †Crossotheca Zeiller (1883)[1] |
| Species | |
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| Synonyms | |
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Crossotheca is an extinct genus of seed ferns (Pteridospermatophyta) widespread in coal measures of Carboniferous, Permian and Triassic age,[8] with possible Devonian remains known from Belgium.[8][9] The type species is C. crepini, named and described in 1883 by R. Zeiller,[1] and the genus is known from fossils found in Belgium (?), Canada, China, England, France, Hungary, Ireland, Poland and the United States.[8]
One species, C. höninghausi, is the male fructification of Lyginodendron oldhami[5][9] and the same species is the microsporangia-bearing member of Lyginopteris.[5]
A fertile Crossotheca branch shows the following features:[2][8]
| Crossotheca |
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 | This article related to a Carboniferous plant is a stub. You can help Wikipedia by expanding it. |
 | This article related to a Permian plant is a stub. You can help Wikipedia by expanding it. |
 | This article related to a Triassic plant is a stub. You can help Wikipedia by expanding it. |
