Go-Hanazono's reign is almost unique because of its eight successive eras; and only the turbulent years of Emperor Go-Daigo's reign included as many eras.

His wave theory described a build-up of massive folds of earth taking place over successive geological eras, called the Caledonian, Hercynian and Alpine periods of orogeny.

For example, in Portal 2 SP, you start at the very bottom, and each successive era added new gels.

Cloud forests are believed to have retreated and advanced during successive geological eras, and their species adapted to warm and wet conditions were replaced by more cold-tolerant or drought-tolerant sclerophyll plant communities.

Although tropical cloud forests disappeared during the glaciations, they re-colonized large areas during successive geological eras when the weather was favorable again.

Among other things, his battered body served as the lone bridge between successive eras.

The Stratemeyer series, as they were revised through the years, have served as reflections of successive eras of mass culture.

Since then, interpretations in successive eras have reflected the sensibilities of the time.

Bahais believe that all were sent by God in successive eras to teach humankind, a process called "progressive revelation."

Index "s" numbers the successive eras (not the Kasner epochs in a given era!)