Your Original Kaiju?

A bipedal animal, mostly back with some grey. A tail with spikes on both sides. It would be taller than Godzilla, but skinnier, and more hunched over. Huge!!! Arms, they are at least 75% to the ground. It has a fairly short neck, and a head similar to space Godzilla's and king Gidorah's combined. Also, its back has long spikes like a Gastonia's (look it up if you don't know what it is) that get shorter as they go towards his tail. The tail is round, and looks segmented. It is named "Terrazon" oh, and its spiked tail is about as long as it is, and the spikes around 1/10 as long as its tail. Only at the end of the tail does it have sideways pointing spikes. Well, there you go. My Kaiju