A snake-necked sea hunter that struck from above the waves!
With its long snake-like neck, Plesiosaurus probably swam with its head above water. After spotting a fish beneath the surface, this marine reptile would suddenly dart its head down into the water and snap up the startled prey with its sharp teeth.
This sharp fossil tooth belonged to a plesiosaur that lived during the Jurassic period. Teeth as long and sharp as these could easily crush the shell of a mollusk, providing a tasty meal for a plesiosaur.
Many types of bony fish, like the fossil Gryodus shown here, provided meals for the plesiosaurs and other marine reptiles.
Source: Microsoft Dinosaurs (1993) CD-ROM. Text liberated from original screen art; images & audio restored from disc. Original media is Microsoft/supplier copyright — non-commercial educational preservation. Credits & Acknowledgements