Abstract Dromaeosaurids were bird-like dinosaurs with a predatory ecology known to forage on fish, mammals and vush gloss bullet vibrator other dinosaurs.We describe Daurlong wangi gen.et sp.
nov., a dromaeosaurid from the Lower Cretaceous Jehol Biota of Inner Mongolia, China.Exceptional preservation in this specimen includes a large bluish layer in the abdomen which represents one of the few occurrences of intestinal remnants among non-avian dinosaurs.
Phylogenetically, Daurlong nests among a lineage of short-armed Jehol Biota species closer to eudromaeosaurs than microraptorines.The topographic correspondence between the exceptionally preserved intestine in the more stem-ward Scipionyx and the remnants in the more birdlike Daurlong provides a phylogenetic framework for inferring intestine tract extent in other theropods lacking fossilized visceral tissues.Gastrointestinal organization results conservative among faunivorous dinosaurs, with delta zeta jersey the evolution of a bird-like alimentary canal restricted to avialan theropods.