Pseudoctenis
From Wikipedia, the free encyclopedia
| Pseudoctenis Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | †Nilssoniaceae |
| Genus: | †Pseudoctenis Seward (1911)[1][2] |
| Species | |
Pseudoctenis is a genus of fossil foliage attributable to the Cycadales. It is one of the most common genera of cycad fossil foliage in the Mesozoic era. Pseudoctenis leaves were ≈ 1m (3ft 3in) long, they were leaves that are divided into a series of elongated leaflets (pinnate) and attached to a central axis (rachis) are characteristic of many Mesozoic fossil floras. Pseudoctenis are similar to modern-day cycads and some, but not all (Zamites) are actually cycad remains.
