The holotype specimen is a partial skull, presently in the collection of the Changchun University of Sciences and Technology. Lamentably, almost all of the crest is missing, but enough skull bones exist to indicate that the shape of the crest was similar to that of the North American genus Parasaurolophus. Besides the holotype skull there is plentiful disarticulated postcranial material from a bone bed.

It's a big hadrosaur, around 13 meters long, in Asia second in size only to Shantungosaurus. Several large bonebeds of this dinosaur have been and are being excavated, all nearly monospecific and evidently river
accumulations (the bones are disarticulated, jumbled together, and show a preferential direction), and from these a nearly complete skeletal reconstruction is depicted.

The name comes from Charon, the "boatswain of the Styx River in Greek and Roman mythology." The paper does not specifically mention why this personage was chosen for the name, but it may have to do with the riverine nature of  the deposits or with the fact that the type locality is on the right bank of the Amur River (Heilongjiang). Type horizon is the Yuliangze Formation. All the material is being prepared for further study and publication.

The paper distinguishes Charonosaurus jiayinensis from another lambeosaurine  species discovered in nearly monospecific bonebeds from the same region, Amurosaurus riabinini.

Source: George Olshevsky