Belongs within: Foraminifera.Contains: Stannophyllum, Psamminidae. The Xenophyophorea are a group of often large, deep-water protists (now believed to be a subgroup of the Foraminifera) that construct sessile tests of agglutinated particles. Characters (from Tendal 1972): Plasmodium (granellare) multinucleate, enclosed by branched tube system composed of a transparent, cement-like organic substance, containing numerous barite crystals (granellae).… Continue reading Xenophyophorea