†Patellispongia robusta Beresi and Rigby 1993 (demosponge)
Demospongea - Orchocladina - Anthaspidellidae
Full reference: M. S. Beresi and J. K. Rigby. 1993. The Lower Ordovician sponges of San Juan, Argentina. Brigham Young University Geology Studies 39:1-63
Belongs to Patellispongia according to M. S. Beresi and J. K. Rigby 1993
Sister taxa: Patellispongia alternata, Patellispongia argentina, Patellispongia attenuata, Patellispongia australis, Patellispongia brosiusae, Patellispongia mackenziensis, Patellispongia oculata, Patellispongia rugosa
Type specimen: Its type locality is Talacasto Gulch, which is in an Arenigian open shallow subtidal wackestone/lime mudstone in the San Juan Formation of Argentina
Ecology: stationary epifaunal suspension feeder