User:Taw Delda

Glyptotherium (meaning "grooved or carved tooth" in Greek) was a large, armored mammal of the family Glyptodontidae, a relative of armadillos that lived during the Pleistocene epoch. It was roughly the same size and weight as a car such as a Volkswagen Beetle, though flatter in shape. With its rounded, bony shell and squat limbs, it superficially resembled turtles, and the much earlier dinosaurian ankylosaurs, as an example of the convergent evolution of unrelated lineages into similar forms. Glyptotherium is believed to have been an herbivore, grazing on grasses and other plants found near rivers and small bodies of water.

Glyptodon is part of the superorder of placental mammals known as Xenarthra. This clade of mammals includes anteaters, tree sloths, extinct ground sloths, extinct pampatheres, and armadillos.

Glyptodon originated in North America. A related genus, Glyptodon, reached the southern region of the modern USA about 2.5 million years ago as a result of the Great American Interchange, a set of migrations that occurred after North and South America were connected by the rising of the volcanic Isthmus of Panama. They became extinct about 10,000 years ago. The native human population in their range is believed to have hunted them and used the shells of dead animals as shelters in inclement weather.

Tyrannosaurus rex (tie-RAN-oh-SORE-us recks) (from the Greek words tyrannos/τύραννος = tyrant + sauros/σαῦρος  = lizard + rex = king), also known as Tyrannosaurus and colloquially known as T. rex, was a large carnivorous theropod dinosaur that lived from 68 to 66 million years ago during the latest Cretaceous age known as the Maastrichtian.

Tyrannosaurus is perhaps the most well known prehistoric animal that has ever lived and has been depicted in nearly every form of media involving dinosaurs. There have been around 50 individuals of this taxon found since its discovery in the early 1900s. The most complete specimen of Tyrannosaurus rex, Sue, is around 90% complete and measures 12.4 meters (40 feet) long, stands nearly 4 meters (13 feet) tall at the hips and weighed about 8.8 tonnes (9.7 short tons) in life, making it among the largest terrestrial predators in Earth's history.