Regnellites
Regnellites nagashimae is the oldest known fossil belonging to the fern family Marsileaceae. It comes from rocks of the Upper Jurassic or Lower Cretaceous Kiyosu-e Formation of Japan. The fossils include leaves with visible veins, as well as sporocarps.
| Regnellites Temporal range: Jurassic or Cretaceous | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Salviniales |
| Family: | Marsileaceae |
| Genus: | †Regnellites T.Yamada & M.Kato |
| Species: | †R. nagashimae |
| Binomial name | |
| †Regnellites nagashimae T.Yamada & M.Kato | |
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