Osmundastrum gvozdevae
| Osmundastrum gvozdevae Temporal range: Middle Jurassic (Bathonian),
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| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Osmundales |
| Family: | Osmundaceae |
| Genus: | Osmundastrum |
| Species: | †O. gvozdevae
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| Binomial name | |
| †Osmundastrum gvozdevae N.V. Bazhenova & A. Bazhenov, 2019
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Osmundastrum gvozdevae is an extinct species of royal fern identified from the Upper Bathonian (Middle Jurassic) deposits in the Mikhailovskii Rudnik locality, Kursk Region, in the European part of Russia. The species is known from coalified stems that have retained excellent cellular structure, making it an important discovery for the study of fossil Osmundaceae. It was formally described in 2019 and provisionally assigned to the extant genus Osmundastrum based on its anatomical similarities to modern representative.