Placodus

Placodus was a placodontid from what is now Germany. It lived during the middle Triassic.

Teeth
Like Paraplacodus, Placodus had protruding teeth at the front. However they are shorter, thicker and more spoon-shaped. The crushing teeth are not confined to the edges of the mouth but form a broad pavement across the palate, and the skull is particularly strng to withstand the stresses of crushing seashells. A row of bony scutes forms a jagged ridge along the back. A gap at the top of the skull may have held a light-sensitive organ.

​Trivia

 * When the teeth were first found in 1830 the ichthyologist Louis Agassiz misidentified them as fish teeth, and gave the name Placodus.  Richard Owen, in 1858, recognized them as reptile teeth.