Ultimate goal is to bring their leader into a body powerful enough to assimilate everyone on Earth into his hive mind.
Ultimate goal is to use the power of the Dino Gems to revert the entire planet Earth back to prehistoric times
Were villains from an alternate dimension (excluding AbareKiller) created when the meteor that caused the extinction of the dinosaurs hit, and emerged from said meteor under the leadership of Wicked Life God Dezumozorlya, with some members (Reje, Jeanne, and Gelidon) originally being from Dino Earth.
Came into conflict with the Abarangers because the team followed the Evolian to Earth in order to protect it.
Came into conflict with the Dino Thunder Rangers because they protected the Dino Gems.
The Evolian forces remained unified under Dezumozorlya's leadership throughout the series, though AbareKiller later led the group temporarily while Dezumozorlya was dormant before he was discovered to possess Dezumozorlya's other half. The Barmia Soldiers were their sole force of foot soldiers,
Mesogog's Army employed Tyrannodrones as their original foot soldiers, but later gained the Triptoids as well. Zeltrax later split from Mesogog's forces, taking the Triptoids with him.
AbareKiller (Mikoto Nakadai) joined this group of his own free will and remained until his connection to Dezumozorlya's other half was discovered, to which he then turned against them.
Trent was brainwashed into joining the group. After he was freed, a clone of him was created for the group before being destroyed by the original.
Voffa and Mikela fused into DezumoVoorla again which is how they were destroyed.
Zeltrax was killed by Tommy and Kira's Brachio Staff and Ptera Grips and Elsa was de-brainwashed. The Ugly Monster was an unrelated monster of the week.
Jeanne was reverted back to Mahoro midway through the season, before rejoining the group, but this time as an undercover spy for the Abarangers before being captured after being found out until the finale when she was freed.
Elsa did not reform until the finale, to which she was later captured before being freed.