Haloquadratum
Haloquadratum is a genus of archaean, belonging to the family Haloferacaceae. The first species to be identified in this group, Haloquadratum walsbyi, is unusual in that its cells are shaped like square, flat boxes.
This halophilic archaean,... Wikipedia
Kingdom: Euryarchaeota
Family: Haloferacaceae
Class: Halobacteria
Scientific name: Haloquadratum
Genus: Haloquadratum; Burns et al. 2007
Order: Haloferacales