| Named By: | Xu Xing, Wang Xiaolin & You Hailu in 2001 |
| Time Period: | Early Cretaceous, 122 Ma |
| Location: | China, Liaoning Province - Yixian Formation |
| Size: | 34 centimetres long for the holotype, but this is a juvenile. Adults would have been larger |
| Diet: | Herbivore |
| Fossil(s): | Complete skeleton preserved on a slab |
| Classification: | | Chordata | Reptilia | Dinosauria | Onithischia | Thyreophora | Ankylosauria | Ankylosauridae | |
Liaoningosaurus is an unusual genus of ankylosaurian dinosaurs from the early Cretaceous period of China. It contains a single species, Liaoningosaurus paradoxus, and is represented by two fossil specimens collected from the Yixian Formation (Aptian age) of Liaoning Province. L. paradoxus was unusual among ornithischian dinosaurs in that it is known to have hunted or scavenged, with preserved gut contents showing that it ate fish. Additionally, some features of its skeleton may suggest that it was partially aquatic.
The type species L. paradoxus was named by Xu Xing, Wang Xiaolin and You Hailu in 2001. The generic name refers to Liaoning. The specific name refers to the confusing mix of nodosaurid and ankylosaurid features shown by the specimen.