| Dyrham Formation | |
|---|---|
| Stratigraphic range: | |
 | |
| Type | Formation |
| Unit of | Lias Group |
| Sub-units | Eype Clay Member, Down Cliff Sand Member, Thorncombe Sand Member |
| Underlies | Beacon Limestone Formation, Marlstone Rock Formation |
| Overlies | Charmouth Mudstone Formation |
| Area | Wessex Basin, Worcester Basin, East Midlands Shelf |
| Thickness | ~125 m |
| Lithology | |
| Primary | mudstone, silt, sand |
| Other | ferruginous limestone |
| Location | |
| Region | England |
| Country | United Kingdom |
| Type section | |
| Named for | Dyrham |
The Dyrham Formation is a geologic formation in England. It preserves fossils dating back to the early part of the Jurassic period (Pliensbachian).[1]
See also[edit]
References[edit]
- ^ British Geological Survey. "Dyrham Formation". BGS Lexicon of Named Rock Units. Retrieved 8 March 2018.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction