U.S. National Library of Medicine

1. Korarchaeota

   A kingdom in the domain ARCHAEA, comprising thermophilic organisms from the hot spring Obsidian Pool (Yellowstone National Park) that are among the most primitive of all life forms. They have undergone comparatively little evolutionary change since the last common ancestor of all extant life. (From ASM News, 1996; 62(9):468-9)