The Lost Power Rangers series are a list of series of Power Rangers who weren't adapted from Super Sentai (Goranger-Jetman). 1. * Masked Rangers (1961-1969) 2. * Ninja Force Seven (1977-1978) 3. * Jacker Rangers (1978) 4. * Battle Rangers (1980-1981) 5. * Power Rangers (1981-1982) 6. * Power Rangers Sun Force (1982-1983) 7. * Power Rangers Super Force (1983-1984) 8. * Power Rangers Dyna Force (1984-1985) 9. * Power Rangers Bio Storm (1985-1986) 10. * Power Rangers Legend Beasts (1986-1987) 11. * Power Rangers Sonic Force (1987-1988) 12. * Power Rangers Spirit Path (1988-1989) 13. * Power Rangers Bio Academy (1989-1990) 14. * Power Rangers Street Racers (1990-1991) 15. * Power Rangers Geo Force (1991-1992) 16. * P