What is the reproduction of Tyrannosaurus rex What period did Tyrannosaurus rex live in

Tyrannosaurus rex lived during the Maastricht period of the early Cretaceous period and lived in Florida or southern Georgia.

Tyrannosaurus rex, also known as Rex Tyrannosaurus, lived in the Maastricht period at the end of the Cretaceous period, about 68.5 million to 65 million years ago, and lived in Florida or southern Georgia. Fossils are found in the United States and Canada in North America, and were among the last dinosaurs to become extinct.

Morphological characteristics of Tyrannosaurus rex

Tyrannosaurus rex is the largest of the Tyrannosauridae family. The body length is about meters. The average hip height is about 4 meters. The highest hip height can reach about meters, and the highest head height is nearly 6 meters.

The average weight is about 9 tons, (the ecological average is about a ton), the heaviest tonnage, and the head length is about a meter. The bite force is generally 90,000 Newtons to 120,000 Newtons, and the maximum mouth end can reach about 200,000 Newtons, and it is also the thickest carnivorous dinosaur.

Tyrannosaurus rex, also known as Rex Tyrannosaurus, lived in the Maastricht period at the end of the Cretaceous period, about 68.5 million to 65 million years ago, and was one of the last non-avian dinosaur species before the Cretaceous-Tertiary extinction event.

Tyrannosaurus rex is the largest of the Tyrannosauridae family. The body length is about meters. The average hip height is about 4 meters. The highest hip height can reach about meters, and the highest head height is nearly 6 meters. The average weight is about 9 tons, and the head length is about about meters.

The bite force of Tyrannosaurus rex is generally 90,000 Newtons to 120,000 Newtons, and the maximum end of the mouth can reach about 200,000 Newtons, and it is also the thickest carnivorous dinosaur.

In terms of physical characteristics, Tyrannosaurus rex has very small forelimbs, only 22% of the length of hind limbs, and the length of the average individual is only about 80 centimeters, compared to the huge size and hind limbs of Tyrannosaurus rex, the forelimbs appear very small, equivalent to an adult's arm.

In terms of length, most carnivorous dinosaurs can surpass Tyrannosaurus rex, including Sharkodontosaurus, Brutesaurus, Quirosaurus, and Sauronsaurus.

However, the body width, cervical vertebrae width, leg length, pelvic size, and shoulder blade size of Tyrannosaurus rex far exceeded that of almost all Allosaurus superdinosaurs such as Maprosaurus and Qui Rex, and had the largest and thickest and broadest head, cervical vertebrae, trunk, and hind limbs of Carnivorous Rex.

Carnivorous dragons and theropods of general size and body shape (such as ceratosaurus, allosaurus, spotted dragon, Yongchuansaurus, etc.) only have less than 50% of the weight of Tyrannosaurus rex, and some stout carnivorous dragons (such as Tyrannosaurus rex, Tyrannosaurus rex) have only 75%-80% of the body weight of the same body of Tyrannosaurus rex.

Among the carnivorous dinosaurs, only the brutesaurus and the qui rex could reach or approach 90% of the body mass index of the Tyrannosaurus rex.

In addition, the skeleton of Tyrannosaurus rex is also very thick, the growth cycle of Tyrannosaurus rex ends at the age of 19, and it will not exceed 21 years old at the latest, when the growth cycle of Tyrannosaurus rex ends, although Tyrannosaurus rex will continue to grow, but it will neither grow nor become taller, its skeleton will become thicker, and the overall look will be stronger.

Paleontologists speculate that dinosaurs reproduced as much as living reptiles, including turtles, snakes, crocodiles, and lizards, based on the way they reproduced. However, no one has ever seen a dinosaur lay eggs, and these past speculations have never found reliable fossil evidence.

Later, paleontologists found dinosaur egg fossils in the strata to really solve the problem. In 1922, paleontologists in Shabalakwusu, Mongolian People's Republic, collected a nest of fossilized dinosaur eggs, and two of them contained unhatched baby dinosaur embryos in their shells. This is a very rare and precious specimen.

It confirms the paleontologists' speculation that dinosaurs reproduced oviparous. Dinosaur egg fossils in China are extremely abundant, and the fossil genera found account for almost 80% of the world's total. Paleontologists have found abundant dinosaur eggs in Shandong, Guangdong, Jiangxi, Zhejiang, Anhui, Shanxi, Inner Mongolia, Xinjiang, Henan and other places.

In order to courtship and win the right to reproduce, the tall male dinosaurs are willing to be "strict wives", and never dare to provoke those savage girlfriends who are stronger than them.

Tyrannosaurus rex is a ferocious carnivorous dinosaur that lived at the end of the Cretaceous period, and is the largest of the Tyrannosaurus rex family, with a body length of about one meter. Tyrannosaurus rex lived mainly in hilly areas and preyed on herbivorous reptiles.

Tyrannosaurus rex is the largest known terrestrial carnivore, with a body length of 15 meters, a length of meters on the head alone, and a body height of 6 meters. The Tyrannosaurus rex had a bulky, tall, flattened skull, two large eyeholes, and oval eye sockets. The forefoot is degenerate and weak, with only two fingers and may have a third finger remaining.

The Tyrannosaurus rex has an extremely compact waist structure, and not only the intestinal bone and the vertebrae are tightly healed, but the ischial bones and the distal ends of the pubic bone are also attached to each other. Such a thick belt structure indicates that its hind limbs are highly mobile.

The Tyrannosaurus rex was at the top of the food chain in the late Cretaceous period, when a variety of dinosaurs on the continent could be its prey. The Tyrannosaurus rex basically had no natural predators, and in the environment at the time, few other kinds of creatures could beat the Tyrannosaurus rex.

1. The growth environment of Tyrannosaurus rex In the place where Tyrannosaurus rex was found, there were conifers and relatives of the Tyrannosaurus rex era, and the scene at that time was very similar to that of Florida or southern Georgia, and there were some small trees in this area, these trees were fifteen to twenty-five meters high, and the diameter of the trunk was less than one meter. At the time when the Tyrannosaurus rex lived, many modern plants had actually appeared.

2. The living habits of Tyrannosaurus rex As an animal that stood at the top of the food chain in the late Cretaceous period, in North America and other places at that time, all kinds of dinosaurs would become the prey objects of Tyrannosaurus rex, and sometimes attacked long-necked herbivorous dinosaurs like Alamosaurus, Ankylosaurus and Swollencephalic dinosaurs generally rarely preyed, or were not in the predation list of Tyrannosaurus rex. Although there were some conflicts between these dinosaurs and Tyrannosaurus rex, they were not their opponents in the end.

3. Species Evolution Process The ancestors of Tyrannosaurus rex originated from the Triassic period of Archaeopteras, the length of Archaeopterax was only 90 centimeters, and the weight was only five to seven kilograms, in the lower jaw part of Archaeoptera, and there was an additional link device as a vegetarian dinosaur, and in the middle of the jaw, there was also a curved movable joint.

In the beginning, Archaeopterax originally had five fingers, but when it continued to evolve in the later period, when Tyrannosaurus rex appeared, there were only two or three fingers left, and according to the research of many scientists, it was found that Tyrannosaurus rex was likely to be the descendant of giant predators.

Fourth, the existing Tyrannosaurus rex bones of the Tyrannosaurus rex signature ** in ancient Greek, roughly meaning "brutal lizard or model lizard king", the species name in Latin means king, and in 1991, the Tyrannosaurus rex fossil found in Western Canada at that time is the largest Tyrannosaurus found in the world so far, and the discovery of Tyrannosaurus fossils will even be considered to exceed the size of all carnivorous dinosaurs that have been found in the past.

In 2019, the world's largest Tyrannosaurus rex skeleton was exhibited in the Canadian province of Saskatchewan.