| Rockford Limestone | |
|---|---|
| Stratigraphic range: Mississippian | |
| Type | Formation |
| Underlies | New Providence Shale |
| Overlies | New Albany Shale |
| Location | |
| Region |  Illinois  Indiana  Kentucky |
| Country |  United States |
The Rockford Limestone is a geologic formation in Indiana. It preserves fossils dating back to the Carboniferous period.
See also[edit]
References[edit]
- 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