Amazing creatures, I love dragons, if given the chance to name them I can't help but get excited. It's like naming the best pet in the world.
These dragons have amazing designs, they blow my mind.
Verdion and Verdarox seem to be dragons that have pink seaweed like Rhodophyta, so I would call them Algara and Algarhadox.
Tiderion and Tiderox for having some resemblance with the mythical Loch Ness Monster, I will call them Vyssi and Nessiely.
Terrarion and Terraox seem to be very familiar with earth and rocks, so Taurre and Rhyurre might be a good choice.
Emberion and Emberox are my favorites, I called them Dablaze and Zalablaze.
Glacion and Glaciox have a very remarkable change in their evolution, that's why I called them Rambane and Yinfrost