Family Paraquadrulidae Deflandre, 1953

 

Diagnosis: Lobose testate amoebae with shell completely composed of endogenously formed rectangular calcite plates embedded in a sheet-like organic cement. The presence of calcite should be verified by polarizing microscopy, with hydrochloric acid, or X-ray- microanalysis.

 

Two genera:

                         

Test oval or round

Paraquadrula

Test flask-shaped

Lamtoquadrula