They never fought an "evil Dino Charge Ranger", which brings up the point of the Dark Ranger. Though they did fight Clone Rangers and Doomwing.
All ten Kyoryugers have had transformed together. There are 10 Rangers in total as Deathryuger was never part of the Kyoryugers apart from being evil.
Despite having appeared in multiple episodes together, ten Rangers are never seen transforming together. The closest thing to this happening is with eight or nine Rangers. In total, they are 11 Dino Charge Rangers.
The evil Silver Ranger was faking being a villain and was Red Ranger's father, not Aqua Ranger.
The evil Silver Ranger was legitimately evil and was a clone of the original while Aqua Ranger was Red Ranger's father.
They teamed up with the Zyurangers and the Abarangers, but this didn't include Dragonranger, AbareBlack, or AbareKiller. The Kyoryugers would also later team up with the King-Ohgers.