| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| A Geologic Time Scale 2004 | Hardcover | 978-0-521-78142-8 (0-521-78142-6) | 2005 | Felix M. Gradstein · Alan G. Smith |
| A Geologic Time Scale 2004 | Paperback | 978-0-521-78673-7 (0-521-78673-8) | 2005 | Felix M. Gradstein · Alan G. Smith |
| The Concise Geologic Time Scale | Hardcover | 978-0-521-89849-2 (0-521-89849-8) | 2008 | Gabi Ogg · Felix M. Gradstein |