A previous-floor creature whose body yielded the gate coordinates used to map the sixth floor.
Gwen's team looted gate coordinates off the body of the Quetzalcoatlus on the fifth floor. Katia used those coordinates to build the crawlers' Community Map of the sixth floor, and by translating them estimated the floor at roughly 100,000 square kilometers — about the size and shape of Iceland.
The fifth-floor kill whose loot underpins every crawler map of the Hunting Grounds.
Also appears in books you've already read — spoiler-safe to their endings: