This information was published in 1966 in An Encyclopaedia of New Zealand, edited by A. H. McLintock. It has not been corrected and will not be updated.
Up-to-date information can be found elsewhere in Te Ara.
Figs. 1–5. Foraminifera (Protozoa, primitive one-celled animals with hard shells of lime or agglutinated sandgrains and growing by adding chambers in a variety of ways, fairly constant for each species). Size range: 0.01 mm.-3 c.m. Fig. 1, Notorotalia tar