Anthozoa - Scleractinia - Guyniidae

Alternative combination: Sakalavicyathus collignoni

Full reference: J. Alloiteau. 1958. Monographie des madreporaires fossiles de Madagascar [Monograph of fossil corals from Madagascar]. Annales Geologiques de Madagascar 25:1-218

Belongs to Palaeopsammia according to R. Baron-Szabo 2008

Sister taxa: Palaeopsammia cardabiaensis, Palaeopsammia zitteli, Palaeopsammia zljebinensis

Type specimen: Its type locality is Mitsinjo, which is in a Maastrichtian marine horizon in Madagascar

Ecology: stationary intermediate-level epifaunal suspension feeder