Protoprisma

{{Short description|Extinct genus of sponges}}

{{Speciesbox

| name = Protoprisma

| fossil_range = Burgess Shale

| taxon = Protoprisma annulata

| authority = Rigby and Collins, 2004

}}

Protoprisma is a genus of sponge known from the Burgess Shale.{{RigbyCollins2004}}