Permocalculus Explained

Permocalculus is a genus of red algae known from Permian to Cretaceous strata.^[1] Closely aligned to Gymnocodium, it is placed in the Gymnocodiaceae.^[2]

References

• Web site: Guiry. M.D.. Guiry. G.M.. 2008. Permocalculus. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. 2009-06-24.

1. Book: 0-05-002485-X. Biology of the Rhodophyta. Dixon. Peter Stanley. 1973.
2. Elliott . G. F. . The Permian Calcareous Alga Gymnocodium. Micropaleontology . 1 . 1 . 10.2307/1484413 . 83–90 . 1955 . 1484413 .