†Cottaldia australis White 1887 (sea urchin)
Echinoidea - Arbacioida - Arbaciidae
Belongs to Cottaldia according to C. J. Maury 1936
Sister taxa: none
Type specimen: Its type locality is Lastro, perto de Maroim, which is in an Albian marine horizon in Brazil
Ecology: epifaunal grazer