 
        
            Champsosaur and fish 
            Monjurosuchus & Lycoptera
            Like many Liaoning fossils, this one captures the remnants of
            several animals that died simultaneously, perhaps killed by a
            volcanic event. The champsosaur, a superficially crocodile-like
            reptile, is about a foot long. Fish are the most common backboned
            animals in the fossil beds, and the most prevalent are herring-like
            Lycoptera. Fossil hunters have discovered thousands of
            specimens in a single layer of sedimentary rock. Aquatic animals and
            plants, in general, often became spectacular fossils, as
            fine-grained sediments were likely to drift to the bottoms of lakes
            and ponds.