The great-great-great-grandfather of a tyrannosaurus was the size of a large dog

During recent excavations in the Utah region, paleontologists have uncovered fossil remains of a new dinosaur species called "Moros intrepidus." He is distinguished by a great similarity - and, as it turned out later - a direct relationship with the well-known giant monster T-Rex, aka Tyrannosaurus. But his distant ancestor was very tiny, although at the same time no less evil and dangerous.

Scientists had a big problem with tyrannosaurs, since they only had reliable samples that were 80 million years old and 150 million years old. But what happened to this species in the interval is unknown, in fact it is a gap of 70 million years, which is prohibitively large even by the standards of world history. How did the tyrannosaurs live, how did the genus of tyrannosaurs develop all this time?

The period of life of Moros intrepidus is defined as 100 million years ago, in the very middle of an empty chronological field. And this allows us to conclude that they are the ancestors of Tyrannosaurs. The same powerful hind legs, a jaw dotted with teeth, a tendency to aggression and characteristic deformed front legs. True, the size was pumped up - Moros intrepidus had a growth of less than 1 m, at 4 m and more in a tyrannosaurus.

The teeth indicate a predatory nature, but due to its small size, Moros intrepidus probably led a gregarious lifestyle, when victory was achieved by an advantage in numbers rather than power. But, again, the small size helped him to penetrate holes or, conversely, hide in them from larger predators. It was also impossible to kill victims with one bite, so the little Moros intrepidus was probably a dexterous and sophisticated monster.