In Morocco, researchers discovered a huge new puzzle, called the Talassatotian atrox, which had massive jaws and teeth like the gutters. Talassotitan hunted sea reptiles — plasiosaurus, sea turtles, and other puzzles.
At the end of the chalk period, 66 million years ago, there really were sea monsters. Mosazaurs weren't dinosaurs, but huge sea lizards that grow up to 12 metres in length.
During the past 25 million years of the chalk period, the mosaics have taken the place of plasiosaurus and chithiosaurus in the food chain; some have evolved to eat small-scale prey such as fish and squid; others have crushed the ammonium and molluscs; a new puzzle called the Talassotian atrox has evolved to hunt all other sea reptiles.
The remains of the new species were dug up in Morocco, about an hour away from Casablanca, and here, near the end of the chalk period, the Atlantic flooded North Africa, and the nutrient-rich water rising from the depths fed the flowering plankton, feeding on a small fish that was preyed on by a larger fish, which, in turn, was the victim of puzzles and plasiosaurus, which became food for a top predator, a giant carnivorous thalastotitan.
The size of Talassotitan's huge skull was 1.4 m and the body was up to 9 m. While most of the mosaics had long jaws and thin teeth for fishing, Talassatotian had a short broad mussels and massive conical teeth, as was the case in the patio, which allowed it to grab and tear apart a huge mine. The giant puzzle occupied the same ecological niche as modern moustache and large white sharks.