Spinax is a green, keen, spikey machine! This Vivosaur that you recieve at the beginning of Fossil Fighters(Sadly, not every game) is a Neutral type, and looks really cool for something you get at the beginning of a game! Some of Spinax's moves include Spinax Fury, with other interesting moves.
In Fossil Fighters DS, it is possible to get Spinax Fossils at Greenhorn Plains. Look out for Spinax, because you never know when it will want to use it's spikes as an attack method!