EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > AMOEBOIDS > FORAMINIFERS
Foraminifers of subclass Sarcodina are amoeboid marine protozoa that secrete
a calcareous, many-chambered test in which to live and then extrude
protoplasm through pores to form a layer over the outside.
Hickman, C. and L. Roberts. 1995. Animal Diversity. William C. Brown
Publishers. Dubuque, Iowa.