Smithsonian Insider – Fossil shows Prehistoric Reptile Gave Birth in Open Ocean | Smithsonian Insider
Mosasaurus - Wikipedia
Mosasaurus Jaw Fossil with Real Bone – True Nature Homestead
Amazon.co.jp: SCIENCE Dinosaur Fossil "Mosasaurus Tooth Fossil Approx. 30mm (Mosasaurus tooth/Late Cretaceous/Kingdom of Morocco)" comes in original specimen case : Toys & Games
North Dakota fossils could be new species of ancient marine reptile - CBS News