Mormon fundamentalism
Mormon fundamentalism (also called fundamentalist Mormonism) is a variant of Christian fundamentalism with belief in the validity of selected fundamental aspects of Mormonism as taught and practiced in the nineteenth century, particularly during the administrations of Joseph Smith, Brigham Young, and John Taylor, the first three presidents of the Church of Jesus Christ of Latter-day Saints (LDS Church). Mormon fundamentalists seek to uphold tenets and practices no longer held by mainstream Mormons.