Eukaryota Temporal range: Orosirian – Present 1850–0 Ma Had'n Archean Proterozoic Pha.
Eukaryotes and some examples of their diversity – clockwise from top left: Red mason bee, Boletus edulis, Common chimpanzee, Isotricha intestinalis, Persian buttercup, and Volvox carteri
Scientific classification
Domain:	Eukaryota (Chatton, 1925) Whittaker & Margulis, 1978
Supergroups and kingdoms
Archaeplastida Kingdom Plantae – Plants Hacrobia SAR (Stramenopiles + Alveolata + Rhizaria) Excavata Amoebozoa Opisthokonta Kingdom Animalia – Animals Kingdom Fungi Eukaryotic organisms that cannot be classified under the kingdoms Plantae, Animalia or Fungi are sometimes grouped in the kingdom Protista.

A typical animal cell

An eukaryote is an organism with complex cells, or a single cell with complex structures. In these cells the genetic material is organized into chromosomes in the cell nucleus.

Animals, plants, algae and fungi are all eukaryotes. There are also eukaryotes amongst single-celled protists. In contrast, simpler organisms, such as bacteria and archaea, do not have nuclei and other complex cell structures. Such organisms are called prokaryotes.