70 Million Years BC #346
| Series | Fantastic Four |
| Number | Vol. 1 #346 |
| Publisher | Marvel |
| Date | 1990-11 |
| Type | Comic Book, Softcover |
| Language | English |
| Artist | Walter Simonson |
| Colorist | Mucho Bucce |
| Editor | Ralph Macchio |
| Editor In Chief | Tom DeFalco |
| Letterer | Bill Oakley |
| Writer | Walter Simonson |
| Genre | Superhero |
| Published in | New York |
| Pages | 32 |
| Notes | $1.00 US $1.25 CAN UK 60p |