The Goreslingus Rex is mentioned once in "The Complete Book of Dragons", when discussing dragon eggs. This dragon is not written about any further. Though Goreslingus Rex is a rather interesting name, no assumptions can be made from it.
- "In the same way, a Common or Garden Dragon egg looks horribly similar to the egg of a Goreslingus Rex dragon. But a baby Common or Garden dragon is likely to lick you and think you are its mama, while a baby Goreslingus Rex dragon will send you straight to Valhalla with one snort of its dear little nostrils. (Don't blame the poor baby Goreslingus Rex. It thinks it's being friendly.)"
- ―The Complete Book of Dragons
- The Complete Book of Dragons: Guide To Dragon Species, Cressida Cowell. 2014