| Permocalculus Temporal range: Permian–Cretaceous |
|
|---|---|
| Scientific classification | |
| Phylum: | Rhodophyta |
| Class: | incertae sedis |
| Family: | †Gymnocodiaceae |
| Genus: | †Permocalculus G. F. Elliott, 1955 |
Permocalculus is a genus of alga known from Permian to Cretaceous strata.[1] Closely aligned to Gymnocodium, it is placed in the Gymnocodiaceae.[2]