For a quick review: en.wikipedia.org/wiki/Ecumenical_Councils
I might screw this up, but if you look at it in terms of specific councils, you have the first seven councils (325 AD to 787 AD):
(1 – 7)
1st Nicaea, 1st Constantinople, Ephesus, Chalcedon, 2nd Constantinople, 3rd Constantinople, 2nd Nicaea.
Roman Catholics hold further councils to be authoritative:
(5 – etc.)
(4th Constantinople, the Lateran councils, the Lyon councils, etc., all the way to 2nd Vatican).
You have SOME Eastern Orthodox who abide by 4th Constantinople, 5th Constantinople, and the Synod of Jerusalem (1672).
The Assyrian Church accepts only 1 and 2. Oriental Orthodox accept 1, 2, and 3. Eastern Orthodox embrace all of 1 – 7 and some accept a few more.
Roman Catholics accept 1 – 7 and many others.
Anglicans accept (?) 1 – 7 but conditionally.
Lutherans and Methodists accept 1 – 7 with reservations.
Other Protestants accept none.
So again my question: Whose orthodoxy? Catholics, Orthodox, Anglicans, Evangelicals? At best we might say the Seven Ecumenical councils are generally adhered to, or perhaps the first three, but even there Protestants only take the crucial doctrinal elements from them. They wouldn’t feel obligated to accept what the creeds say about icons for example!
Tom