Coordinates:X: -1169, Y: 896
In order to get it , go the the following location and kill Tarsarian Devourer .
We would like to thank to Brian and tkrausse for additional information .
Original Game Codex TextThe tarsarian devourer is the product of a rakghoul virus mutation that has spread to the predatory tarsarian stomper. The stompers–a non-native species once kept in a handful of Tarisian zoos–bred, hunted and initially thrived in the post-bombardment jungles, but were soon overwhelmed by their more aggressive infected cousins. The tarsarian devourer became king of the Tarisian food chain, and although it is impossible for sentient species to contract the mutated form of the rakghoul virus, that makes the tarsarian devourer no less feared when encountered in the wild.