What is "heilongjiangosaurus"

"Heilongjiangosaurus" (meaning " Heilongjiang Province lizard") is the informal name given to an as-yet undescribed genus of duckbilled dinosaur from the Late Cretaceous. It possibly was a lambeosaurine, and may in fact be the same animal as Charonosaurus. The fossils were found in Maastrichtian-age rocks in Heilongjiang, China. As a nomen nudum, we cannot be certain of what it is supposed to be, but there also appears to be a connection to an obscure species called Mandschurosaurus jiayinensis, named in 1983.

The "type species" is "H. jiayinensis", and it was coined in 2001 in a faunal list by Li and Jin.