Definition of "Rhizaria"

Typically amoeboids with filose, reticulose, or microtubule-supported pseudopods, of which many produce shells or skeletons, which may be quite complex in structure, and these make up the vast majority of protozoan fossils and nearly all of which have mitochondria with tubular cristae.

1. A taxonomic infrakingdom within the subkingdom Biciliata.  examples

2. A taxonomic infrakingdom within the subkingdom Harosa.  examples