There is no set list of ex cathedra teachings, but that’s because there are only two, and both are about Mary: her Immaculate Conception (declared by Pope Pius IX in 1854 and grandfathered in after the First Vatican Council’s declaration of papal infallibility in 1870) and her bodily Assumption into heaven (declared by Pope Pius XII in 1950).
But neither of these was earth-shattering to Catholics, because these beliefs had been nurtured through devotion, prayer, and local teaching for centuries before becoming official papal teaching.
Is there a list of infallible teachings?
You have put your finger on one of the problematic issues within Catholicism - the relative significance of teaching. Most Catholics look to the Catechism of the Catholic Church as defining Catholic doctrine, but, as we all know, the Catechism was not carved in stone and is subject to alteration over time. It also skims over various teachings such as Purgatory and Limbo, leaving the door wide open to various understandings.
Things worked out in the early Church Councils have yet to be declared to be infallible while relatively insignificant doctrines, such as the two Marian dogmas you mentioned, have been elevated to the highest level in the spectrum
Upvote
0