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Extinct genus of Late Carboniferous seed ferns From Wikipedia, the free encyclopedia
Lyginopteris is a genus of Late Carboniferous seed fern stems with a very distinctive outer cortex of sclereids forming a pattern in cross section like Roman numerals on a clock face, often called a Sparganum cortex. Some Lyginopteris were parasitized by water molds, such as the Combresomyces.[1]
Lyginopteris Temporal range: | |
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Permineralized stem Lyginopteris oldhamiana from coal ball of Late Carboniferous Six Inch Coal in Hough Hill Colliery near Stalybridge, England | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | †Pteridospermatophyta |
Class: | †Lyginopteridopsida |
Order: | †Lyginopteridales |
Family: | †Lyginopteridaceae |
Genus: | †Lyginopteris (Binney) Potonie 1899 |
Species | |
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