For years Power Rangers basically had one continuity. Sure it was a little wonky and things didn’t quite all fit together but all the seasons basically took place in one universe.
Then Power Rangers Rpm happened.
At first it was assumed to be a series set far in the future but was confirmed in its team-up with Power Rangers Samurai that no, Rpm’s post apocalyptic world was its own continuity. Then Dino Charge ended with dinosaurs alive again so it was in its own universe. Ever since Power Rangers fans have wondered at the start of each season where that season could take place. Is it in the “Main” universe? It’s own universe? The Rpm universe? The Dino Charge universe? The Boom comics universe? One of the many, many offshoots?
Dino Fury executive producer Simon Bennett stated