During the Late Cretaceous period, which spanned approximately 68-66 million years ago, Tyrannosaurus rex, commonly known as T. rex, roamed the Earth. Several other dinosaurs coexisted with T. rex during this time period, and some of the dinosaurs that lived in the same places and at the same time as T. rex include:

    Triceratops: Triceratops was a large, herbivorous dinosaur known for its distinctive frill and three horns on its face. It was one of the most common dinosaurs found in North America during the Late Cretaceous period and likely shared the same habitats as T. rex. There is evidence to suggest that T. rex and Triceratops may have interacted and even engaged in predator-prey relationships.

    Edmontosaurus: Edmontosaurus was a large, duck-billed dinosaur that lived during the Late Cretaceous period. It was a herbivore and likely shared similar environments with T. rex. Fossils of both T. rex and Edmontosaurus have been found together in some locations, indicating that they coexisted in the same areas.

    Ankylosaurus: Ankylosaurus was a heavily armored dinosaur with a clubbed tail that lived during the Late Cretaceous period. It was a herbivore and may have shared the same habitats as T. rex. Ankylosaurus had a tough, bony armor that could have provided defense against T. rex's attacks.

    Pachycephalosaurus: Pachycephalosaurus was a dome-headed dinosaur that lived during the Late Cretaceous period. It had a thick skull and may have engaged in head-butting behaviors. While T. rex was a large predator, Pachycephalosaurus was an herbivore, but they likely lived in the same areas.

    Velociraptors: Velociraptors were small, feathered dinosaurs that lived during the Late Cretaceous period. They were carnivorous and likely coexisted with T. rex, although they were much smaller in size. Velociraptors were known for their speed and hunting abilities and may have been part of the ecosystem in which T. rex lived.

These are just a few examples of dinosaurs that lived at the same time and in the same places as Tyrannosaurus rex during the Late Cretaceous period. The fossil record continues to provide new insights into the ancient ecosystems and the relationships between different dinosaur species during this time period.
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