Actually, it is distinctive Catholic teachings that are not manifest in the only wholly inspired substantive authoritative record of what the NT church believed (including how they understood the OT and gospels), which is Scripture, especially Acts thru Revelation.
I belong to That Church, as does Harley D, and many many freepers. Do you belong to That Church, and the Catholic church?
An old and very tired argument that's been played out on this site time and time again. If you want to believe somebody "hypothesis" 600 years after the fact and make this into doctrine, then it's disingenuous for Catholics to tell Protestants they made up things 1500 years later. Time isn't the issue.
Protestants (at least some) still believe the scriptures to be the ONLY infallible and inerrant word of God in which one is not to add to it, change it, or delete from it. You won't find this "doctrine" anywhere in scripture. Despite what our early church fathers wrote, the same feeling of the purity of scriptures can't be said for Catholics as this points out.