| Living Diamond Chronology |
| Marvel Age Introductions by On-Sale Date | ||||
| 1967 | OCT 10 | XMN039B | The X-Men | [Origins of the X-Men • Cyclops][Living Diamond] |
| 1967 | NOV 9 | XMN040B | The X-Men | [Origins of the X-Men • Cyclops][Living Diamond] |
| 1967 | DEC 12 | XMN041B | The X-Men | [Origins of the X-Men • Cyclops][Living Diamond] |
| 1968 | JAN 9 | XMN042B | The X-Men | [Origins of the X-Men • Cyclops]{living Diamond] |