"He was seen of Cephas, then of the twelve... After that, he was seen of James; then of all the apostles." (1 Cor. 15.5,7).

All of the apostles includes the Twelve plus other Apostles at the time such as Junias. Thayer's Lexicon refers to Junia as "a women's name...and the name occurs again in Rom. 16.15": "Salute Philologus, and Julia" (v.15).

It is a strange way to speak to say "who are of note among the apostles". Normally when you are among, you are included in that group. For your view to be true, you would read it: "are notable to the apostles".