parallel record of Graticula, a genus attributed to the Sporolithales.
Teichert, Sebastian, William Woelkerling, and Axel Munnecke. "Coralline red algae from the Silurian of Gotland indicate that the order Corallinales (Corallinophycidae, Rhodophyta) is much older than previously thought." Palaeontology (2019).