Mormonism isn't orthodox Christianity.
If you ask the people who call themselves Orthodox Christians (yes I know you intentionally didn't capitalize it), neither are Catholics or any denomination of Protestants. If you ask Catholics, the so-called "Orthodox" Christians are unorthodox, and of course all the Protestant denominations as well. Both Catholics and Orthodox consider the other an unorthodox heresy which they excommunicated from their one true holy and apostolic church. Protestants meanwhile consider the Catholicism from which they descend to be a corruption of the original teachings of Christ and thus not truly Christianity at all, and it's very common (and just as annoying to me as GP's "Mormons and Christians" comment) to hear some denominations of Protestants speak of "Christians" and "Catholics" like they are non-intersecting sets.
And all those groups (and subgroups within them) dispute all many of points of theology, including some of the ones you list. Take for example the doctrine of the trinity: to copy from Wikipedia for ease, "Modern nontrinitarian groups or denominations include Christadelphians, Christian Scientists, The Church of Jesus Christ of Latter-day Saints, Dawn Bible Students, Friends General Conference, Iglesia ni Cristo, Jehovah's Witnesses, Living Church of God, Oneness Pentecostals, Members Church of God International, Unitarian Universalist Christians, the United Church of God and the Church of God (Seventh Day)."