[Salvation]

Not self-contradictory. The Holy Tradition of the Catholic Church was handed down verbally, even before any of the Bible was written down) from the apostles to the next bishops and so forth.

Do Christians Need Only the Bible?
[T]radition and [t]radition (and just what is the difference?) [Ecumenical]
What is Holy Tradition?
Why Does The Catholic Church Accept Traditions? [Ecumenical]

A Return to Tradition: A new interest in old ways takes root in Catholicism and many other faiths
Scripture Is Tradition
SCRIPTURE AND TRADITION
The Importance of Tradition Today
The Place of Custom and Tradition

Early Church Fathers on (Oral) Tradition - Catholic/Orthodox Caucus
Holy Tradition: The Road That Leads Home
On Holy Scripture and Holy Tradition
Recovering the Catholic Moral Tradition: The notion of happiness
Tradition and Reform

APOSTOLIC TRADITION: Consistency or Contradiction?
Can Vatican II be interpreted in the light of Tradition?
The New Mass: A Return to Tradition???
Pope praises Ukrainian-Catholic Church for upholding Sacred Tradition, communion with Seat of Peter
The Shadow Tradition - Magisterium vs Murk

[Catholic] Tradition catching on with Baptists [Ecumenical Ash Wed. Service]
Pope will preside at Ash Wednesday Mass, procession; act will renew ancient tradition
How Tradition Gave Us the Bible
Papal Supremacy Is Against Tradition
"In Light Of Tradition"... The Society Of St. Pius X And Vatican II

[daniel1212]

I will be brief here, but will any of those links provide me with a complete list of all such tradition, or is verbal tradition nebulous?

In any case, being the steward of revelation, which the Jews were explicitly affirmed to be, (Rm. 3:2; 9:4) does not make such the assuredly infallibly interpreters of it, which the Jews were not, much less Rome, regardless of her self-proclamation to be so. And by what means are we to ascertain that the claims of Rome are assuredly true?