The Cretaceous sea reptile Mosasaur is named after the river Meuse. Halisaurus is an extinct genus of marine reptile belonging to the mosasaur family. Prognathodon is an extinct genus of marine lizard belonging to the mosasaur family. Clidastes is an extinct genus of marine lizard belonging to the mosasaur family. Selmasaurus is an extinct genus of marine lizard belonging to the mosasaur family. Plioplatecarpus is a genus of mosasaur lizard. The phosphate mines are notable source of fossils, especially Mosasaur jaws and teeth. The mosasaur "Platecarpus" was one such marine reptile. He also elaborated on his earlier research into mosasaur biostratigraphy. Mosasaur bones have also been found with shark teeth embedded in them. One "Mauisaurus" fossil was even found battling a mosasaur from the New Zealand region. Mosasaur remains have even been unearthed in Missouri. Later authors speculated that the fossil was likely that of a mosasaur, possibly "Mosasaurus". Similar sclerotic rings are seen in several other mosasaur genera, such as "Mosasaurus". The only other heterodont mosasaur known is "Eremiasaurus".