07592 - Well Preserved 2.46 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth Halisaurus called Gastropoda

called Gastropoda

Parayoungia

Plagioclase crystals appear in interstitial position with olivine in the chondrules

Moody and Buffetaut 1981

In this case the lateral serrations have not been preserved

07592 - Well Preserved 2.46 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth Halisaurus called GastropodaThis Eremiasaurus tooth is preserved in exceptional way, inside his own matrix. It has small glued fracture near the tip. Rooted specimen. To read more about this type of Mosasaur (which was recently described), you can read the following reference from its authors: A. R. H. LeBlanc, M. W. Caldwell, and N. Bardet. 2012. A new mosasaurine from the Maastrichtian (Upper Cretaceous) phosphates of Morocco and its implications for mosasaurine systematics.