What is "capelliniosuchus"

Capelliniosuchus is an extinct genus of mosasaur. It was discovered in Italy, and described by Simonelli, originally believing it to be a metriorhynchid crocodyliform similar to Dakosaurus. However, after re-examing the type specimen, Sirotti concluded that it was a junior synonym of Mosasaurus hoffmannii. A 2016 paper found the genus valid.

Capellineosuchus is a mis-spelling by Romer.