Prognathodon (‘forejaw tooth’)

… is an extinct genus of marine reptile belonging to the mosasaur family or saurians (along with lizards and snakes). It had protective bony rings surrounding its eye sockets, indicating it lived in deep water. Its teeth are similar to those of some Triassic placodonts which intimated that it may have lived a similar lifestyle, feeding on shellfish, large fish and sea turtles. The recent discovery of 2 nearly complete fossils (one which included flippers) in Alberta, Canada have given scientists new data as previous fossils only contained the remains of the skull. One fossil included stomach contents, consisting of elements pertaining to a sea turtle, tarpon-size and trout-size fishes, and a possible cephalopod…

(read more: Wikipedia)        

(images: T - Dmitry Bogdanov; B - Ronald Tanglao)

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