| Marvel Age Introductions by On-Sale Date |
| 1963 | JUL 02 | XMN001 | The X-Men | [INTROThe X-Men•XMROS] [INTROCharles Xavier • Professor X] [INTROWarren Worthington • The Angel] [INTROHank McCoy • The Beast] [INTROScott Summers • Cyclops] [INTROBobby Drake • Iceman] [INTROJean Grey • Marvel Girl] [INTROMagneto] [X-Mansion] |
| 1964 | JAN 03 | XMN004 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [INTROBrotherhood of Evil Mutants] [INTROMastermind] [INTROQuicksilver] [INTROScarlet Witch] [INTROThe Toad] |
| 1964 | MAR 03 | XMN005 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] Quicksilver • Scarlet Witch •[INTROAsteroid M] [John Grey • Elaine Grey] |
| 1964 | MAY 05 | XMN006 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] xo[Sub-Mariner] Quicksilver • Scarlet Witch • |
| 1964 | JUL 02 | XMN007 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [INTROCerebro] Quicksilver • Scarlet Witch |
| 1964 | AUG 04 | JIM109A | Journey into Mystery | [Mighty Thor] xo[Brotherhood of Evil Mutants • Magneto • Mastermind • Quicksilver • Scarlet Witch • The Toad] [The X-Men•XMROS•The Angel • The Beast • Cyclops • Iceman] |
| 1965 | MAR 4 | XMN011 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [The Stranger] Quicksilver • Scarlet Witch • |
| 1965 | DEC 2 | XMN017 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [] |
| 1966 | JAN 4 | XMN018 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [][The Stranger] |
| 1967 | OCT 10 | AVN047 | The Avengers | AVNROS•Captain America • Goliath • Hawkeye •Hercules • Quicksilver • Scarlet Witch • The Wasp Black Widow•Dane Whitman • Black Knight] |
| 1967 | NOV 9 | AVN048 | The Avengers | [AVNROS•Goliath • Hawkeye • Hercules • Quicksilver • Scarlet Witch • The Wasp] [Aragorn][Black Knight] |
| 1967 | DEC 12 | AVN049 | The Avengers | [AVNROS•Goliath • Hawkeye • Hercules • Quicksilver • Scarlet Witch • The Wasp] •[Typhon] |
| 1968 | FEB 8 | XMN043A | The X-Men | [XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] Quicksilver • Scarlet Witch [][Tyrannus] |
| 1968 | MAR 7 | XMN044A | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] Quicksilver • Scarlet Witch [Red Raven] |
| 1968 | APR 9 | AVN053 | The Avengers | [AVNROS•Black Panther • Goliath • Hawkeye • The Wasp] [The X-Men•XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] |
| 1968 | APR 9 | XMN045A | The X-Men | [XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] xo[Quicksilver • Scarlet Witch ] [The Avengers•AVNROS•Black Panther • Goliath • Hawkeye • The Wasp] |
| 1969 | SEP 16 | XMN062 | The X-Men | [XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [Polaris][Havok][Brainchild] [Lorelei] [Ka-Zar • Zabu] |
| 1969 | OCT 14 | XMN063 | The X-Men | [XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [Ka-Zar • Zabu] [] |
| 1970 | JUN 9 | FAN102 | Fantastic Four | [FFROS•Human Torch • Invisible Girl • Mister Fantastic • The Thing] xo[Crystal][Last Kirby] |
| 1970 | JUL 21 | FAN103 | Fantastic Four | [FFROS•Human Torch • Invisible Girl • Mister Fantastic • The Thing] xo[Crystal][] |
| 1970 | AUG 18 | FAN104 | Fantastic Four | [FFROS•Human Torch • Invisible Girl • Mister Fantastic • The Thing] xo[Crystal][] |