I WONDER - What Did The Megalosaurus Eat?

The Megalosaurus was a formidable predator from the Jurassic period, measuring about 9 meters in length and weighing as much as an African elephant. It was a swift runner, moving on powerful hind legs, and had a carnivorous diet, feeding on other dinosaurs. Its physical attributes suggest it was a dominant hunter in its ecosystem.

What physical attributes suggest about the Megalosaurus's role in its ecosystem?

In which geological period was the Megalosaurus one of the dominant hunters?