| Marvel Age Introductions by On-Sale Date |
| 1966 | NOV 3 | XMN028 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [The Mimic][Factor Three] [Banshee] [Ogre] |
| 1967 | APR 11 | XMN033 | The X-Men | [PXMROS•rofessor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] xo[Doctor Strange][The Juggernaut] |
| 1967 | JUN 8 | XMN035 | The X-Men | [XMROS• • Beast • Cyclops • Iceman • Marvel Girl] [Banshee][Changeling] xo[Amazing Spider-Man] |
| 1967 | JUL 11 | XMN036 | The X-Men | [XMROS•Angel • Beast • Cyclops • Iceman • Marvel Girl] [] |
| 1967 | AUG 8 | XMN037 | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [Banshee][Mutant Master] |
| 1967 | SEP 7 | XMN038A | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [] |
| 1967 | SEP 7 | XMN038B | The X-Men | [Origins of the X-Men • Cyclops] |
| 1967 | OCT 10 | XMN039A | The X-Men | [XMROS•Professor X • Angel • Beast • Cyclops • Iceman • Marvel Girl] [Banshee][Living Diamond] [New Costumes] |
| 1967 | OCT 10 | XMN039B | The X-Men | [Origins of the X-Men • Cyclops] |