Catholicism does have it's sub groups.
From Wikipedia:
http://en.wikipedia.org/wiki/Catholicism
Other Catholic groups
In Western Christianity the principal groups that regard themselves as "Catholic" without
full communion with the Pope are the
Ancient Catholic Church, the
Old Catholic Church, the
Liberal Catholic Church, the
Chinese Patriotic Catholic Association, similar groups among Filipinos and Poles, and some elements of
Anglicanism ("High Church Anglicans" or "
Anglo-Catholics"). These groups hold spiritual beliefs and practice religious rituals similar to those of Roman Catholics of the
Latin Rite from which they emerged, but reject the
Pope's claimed status and authority. Some
Traditional Catholic groups are in a similar position. The
Liberal Catholic Church, founded when
Charles W. Leadbeater, formerly a clergyman in the Church of England, and later one of the heads of the
Theosophical Society, was ordained as a bishop in the Old Catholic Church, additionally incorporates significant elements of
theosophy into its doctrinal faith.
The
Anglican Communion is in practice divided into two wings, "High Church Anglicans" also called the
Anglo-Catholics and "Low Church Anglicans" also known as the
Evangelical wing. Though all elements within the Anglican Communion recite the same creeds, Low Church Anglicans regard the word
Catholic in the ideal sense given above, while High Church Anglicans treat it as a name of Christ's church which they consider to embrace themselves together with the Roman Catholic and several Orthodox Churches.
Anglo-Catholicism maintains similarities to the Latin Rite of Roman Catholicism and related spirituality, including a belief in seven sacraments,
Transubstantiation as opposed to
Consubstantiation, devotion to the
Virgin Mary and
saints, the description of their ordained clergy as "priests" ??? addressed as "Father" ??? the wearing of vestments in church liturgy, sometimes even the description of their
Eucharistic celebrations as "Mass". The development of the Anglo-Catholic wing of Anglicanism occurred largely in the
nineteenth century and is strongly associated with the
Oxford Movement. Two of its leading lights,
John Henry Newman and
Henry Edward Manning, both ordained Anglican clergymen, ended up joining the Roman Catholic Church, becoming
cardinals.
The several churches of
Eastern Orthodoxy and
Oriental Orthodoxy each consider themselves to be the universal and true Catholic Church, and typically regard the other of these families and the Western Catholics as heretical and as having left the One Holy Catholic, and Apostolic Church. The
patriarchs of these
Eastern Orthodox and
Oriental Orthodox Churches are
autocephalous hierarchs, which roughly means that each of them is independent of the direct oversight of another bishop (although still subject, according to their distinct traditions, either to the
synod of bishops of each one???s jurisdiction, or only to a common decision of the patriarchs of their own communion). They are willing to concede a primacy of honor to the Bishop of Rome, but not to accept monarchical claims.