Non-humanoid alien species that developed interstellar travel some 65 millions years ago. They possess psychic powers.
One of their spaceship crashed on Earth and its crew went dormant only to be revived toward the end of the 20th century and plotted in vain to conquer Earth before being destroyed
Source: Godzilla the Animated series.
Notes: illustation is © 1998 Toho Co., Ltd. /Adelaide Productions, Inc.