Equicalastrobus
| Equicalastrobus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Subclass: | Equisetidae |
| Order: | Equisetales |
| Family: | Equisetaceae |
| Genus: | †Equicalastrobus Grauvogel-Stamm and Ash |
| Species: | †E. chinleana |
| Binomial name | |
| †Equicalastrobus chinleana (Daugherty) Grauvogel-Stamm and Ash | |
Equicalastrobus is an extinct genus of plant related to horsetails from the late Carnian. It is known only from cones found in the Chinle Formation. It was initially described as part of the genus Lycostrobus before being reassigned to the genus Equicalastrobus. It may represent an intermediate stage between Calamites and Equisetum.[1]
References
- ↑ Grauvogel-Stamm, Le´a; Ash, Sidney R. (1 October 1999). ""Lycostrobus" chinleana, an equisetalean cone from the Upper Triassic of the southwestern United States and its phylogenetic implications". American Journal of Botany. 86 (10): 1391–1405 – via Botanical Society of America.