Jesse Aaronson was created based on a character that had appeared in the Age of Apocalypse crossover, but did not have an Earth-616 counterpart at the time.

She appeared in The Romantic Age in 1949.

Her articles have appeared in the Melbourne Herald Sun, The Age The Australian and various other publications.

Gabriel appears briefly with Angel Salvadore and Dazzler in the Age of X storyline.

Vertigo appeared as an X-Man in the Age of X.

Colleen appeared in the Age of Apocalypse briefly.

Rogue appears in the Age of X continuity going by the name Legacy (also known as the Reaper).

All of these arguments appear in The Age of Reason, albeit less coherently.

The first modern-looking sharks appeared in the Age of Dinosaurs.

Appeared only in the Age Of Apocalypse alternate reality, in the series Generation Next.