The Cockatrice Minosaur is a minor antagonist in Kishiryu Sentai Ryusoulger, appearing as an antagonist in Episodes 7 and 8. A cockatrice-themed Minosaur, it is a servant of the Druidon Tribe made from the negative emotions of Fita.
The Cockatrice Minosaur made its first appearance where it was causing mayhem at a carnival. Later, the Cockatrice Minosaur has grown to giant size and fought KishiRyuOh, but this was all a ruse, because it has the real host within its body.
To ensure the Ryusoulgers would not be able to rescue her, Wizeru imprisoned her inside of the body of the Cockatrice Minosaur, while he assumed her identity in order to trick the Ryusoulgers into feeding an explosive energy capsule to their Kishiryu under the pretense it would make them stronger. However, the Ryusoulgers uncover the truth and rescue Fita from the Cockatrice Minosaur before they manage to destroy the Minosaur and rescue the real Fita.
- The Cockatrice Minosaur is the first cockatrice-themed monster since Hades Beast Cockatrice from 2006 TV series called Mahou Sentai Magiranger.