Why are dinosaurs called large lizards

Because he is a lizard, in fact, it has to be said that they all belong to reptiles, and most reptiles are a shape with a pointed head and long tail and strong limbs, so they are also called lizards, but their scientific names are called reptiles, and reptiles such as dinosaurs, crocodiles, turtles, snakes and most reptiles have a large difference in appearance, so they have separate scientific names, but they all belong to the reptile category.

No, lizards.

It wasn't the dinosaurs that evolved. Lizards and dinosaurs were contemporaneous animals.

The ancestor of the lizard was an ancient reptile that was 100 million years old.

That is, the Permian.

At the end of the day, this was earlier than most dinosaurs, so the ancestors of lizards could never have been dinosaurs.

Lizards and dinosaurs both belong to reptiles, which can be considered as two branches of primitive reptile evolution, these two branches are parallel, there is no one who comes first, and there is no subordination.

In other words, after the appearance of primitive reptiles at the end of the Permian, they evolved to miniaturization and large-scale, respectively, and one branch evolved into dinosaurs, and came to the end of their existence 65 million years ago. The other has been until today.

In fact, there are more than these two reptiles. For example, turtles, turtles, crocodiles, etc., are also different evolutionary branches of primitive reptiles.

The ancestors of lizards are not dinosaurs, they have existed since the time of dinosaurs, and the University of Bristol in the United Kingdom said in a press release that the new study conducted by researchers at the university and colleagues from many countries shows that lizards and snakes and other scaly animals originated in the Permian period.

New research suggests that the common ancestor of all lizards and snakes may have been born 25.7 billion years ago, shortly before the end-Permian mass extinction event. The end-Permian mass extinction was one of the worst extinctions in geological history, and it is unclear how the lepid ancestors survived the catastrophe.

No, dinosaurs and lizards live in the same era!!

It's not just about the same ancestor.

No, lizards are as handsome as dinosaurs.

The ancestor of the lizard was not a dinosaur Dinosaur belonged to a type of lizard, but was nothing more than an enlarged lizard.

The sauropod dinosaur was a large dinosaur with a long neck and tail.

They walked on four legs and were herbivorous dinosaurs.

Because their teeth are not suitable for chewing, they will swallow food directly and will swallow some stones into their stomach to help grind the food.

Polarosaurus, Brachiosaurus, Diplodocus, etc., all belong to sauropod dinosaurs.

The sauropod dinosaur was a dinosaur with a bulging body and a long tail, usually walking on four legs and eating plants.

The largest lizard is called the Komodo Dragon

The Komo Mountain is a species of monitor lizard in the family Monitor Lizard, also known as the Komodo dragon, and is the largest known lizard in existence. Adult Komodo dragons can usually grow up to 2-3 meters, with the largest body length reaching meters and weighing 166 kg. They have a serrated tooth that is centimeter-long, 60 in the mouth, and they are constantly changing.

Komodo dragons have a thick layer of scales on their bodies, which are as solid and thick as armor, which greatly increases their defense.

The Komodo dragon is endangered, with only about 5,700 remaining in the wild, and Indonesia has established a national park on Komodo Island to grow the Komodo dragon family.

The habits of the Komodo dragon

Komodo dragons prefer hot and dry places and usually inhabit dry, open grasslands, savannas, and low-altitude tropical forests. As a lizard, it is most active during the day, although it exhibits some nocturnal activity.

Komodo dragons are solitary and will only gather together to breed and eat. They are able to run quickly in short sprints of 20 km/h, dive up to meters, and skillfully climb trees with strong claws at a young age.

To catch untouchable prey, the Como Trosaurus may stand on its hind legs with its tail as a support. As it matures, its claws are mainly used as **, as its sheer size makes climbing impractical.

Tyrannosaurus rex, also known as Tyrannosaurus rex, is a large carnivorous dinosaur, about 13 meters long, weighing about 7 metric tons, living in the last 3 million years of the Maastric Ladder at the end of the Cretaceous period, about 68.5 million to 65.5 million years ago, is one of the last dinosaur populations before the Cretaceous-Tertiary extinction event. The fossils are found in the United States and western Canada in North America, and are more widely distributed than other Tyrannosauridae. Tyrannosaurus rex was a ferocious carnivorous dinosaur.

Lived in the late Cretaceous. It is one of the largest terrestrial carnivores known, with a body length of 11-12 meters, and a head alone, with the largest skull being meters long and a body height of 4 meters. The skull is heavy and heavy, tall and laterally flattened, with two large eyeholes and oval orbits.

The teeth are extremely well developed. There are traces of coarse movable ligament fixation between the tooth bones, the iliac bones and the anterior articular bones, and the neck bone is short, with 9 10 cervical vertebrae, and its structure is characterized by a short and wide type. The shoulder girdle is degenerate, the shoulder blade is elongated, and the humerus is short, only half as long as the shoulder blade.

The forefoot is degenerate and weak, with only two fingers and may have a third finger remaining. The Tyrannosaurus rex belt is very well developed and extremely compact, 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; The distal end of the pubic bone is enlarged and thickened into a foot-like process, while the distal end of the ischium is called a club-shaped. Such a thick belt structure indicates that its hind limbs are highly mobile.

Tyrannosaurus rex lived mainly in hilly areas and preyed on herbivorous reptiles.

Dragons are the largest dinosaurs in the world.

The largest dinosaur in the world is the Uincur Argentinosaurus. Survival age: 100 million years ago, Middle Cretaceous Alb, 93 million years ago, Late Cretaceous Sen Norman.

The Argentinosaurus is one of the largest animals that have ever roamed the land, standing 12 meters tall and 42 meters long. Of all modern creatures, only the fragile diplosaur was longer than it, and there were some other dinosaurs that were as long as Argentinosaurus and some were taller than it.

Argentinosaurus belongs to the titanosaur class of sauropod dinosaurs, and its name is very simple, meaning the dinosaur that found Songyan in Argentina. We still haven't found a complete fossilized skeleton of this dinosaur, but we have found a supergiant vertebrae belonging to this dinosaur. Sauropod dinosaurs are arguably one of the most successful species of creatures in the history of Earth, and they managed to dominate the entire Late Jurassic period.

Because of the long period of climate stability in the late Jurassic, the climate was warm and suitable for the plant growth preferred by sauropods such as reedy ferns, so these dinosaurs could grow to extremely large sizes. By the Cretaceous period, most sauropods had disappeared due to climate change. But in Argentina there is one sauropod that not only did not go extinct, but evolved to be larger than its Jurassic ancestors – the Argentinosaurus.

Argentinosaurus is undoubtedly the ultimate product of sauropod evolution, and during the Jurassic and Cretaceous periods, the earth's crust was very active, and most of the sauropods that were once famous in the Jurassic were unable to adapt to the climate change caused by the earth's crust and became extinct.

Classification of DinosaursThe biggest difference between dinosaurs and other reptiles is their standing posture and the way they walk, dinosaurs have a completely upright posture and their limbs are built directly below their torso. This structure is more advantageous for walking and running than other species of reptiles, such as crocodiles, which have their limbs stretched outward. According to the different structural characteristics of dinosaur belts, they can be divided into two categories:

Saurischia and ornithischia.

The difference between the two is the structure of the girdle: the girdle of the sauropod is trichopathic when viewed from the side, with the pubic bone extending forward below the intestinal bone and the ischial bone extending backward, which is similar to that of the lizard; The belt of the othesaurus has a large anterior pubic process on the anterior side of the pubic bone, which extends below the intestinal bone, and the posterior side is greatly extended parallel to the ischial bone to the anterior and inferior part of the intestinal bone. Therefore, the pelvis is quadruple when viewed from the side.

In both the sauropods and ornithischians, their belts leave a small hole between the intestines, ischium, and pubic bones, which is not found in other reptiles. It is this hole that shows that there is a closest kinship between these two orders, known as dinosaurs, compared to all other reptiles of various orders.

The shape of a lizard can be divided into four parts: head, torso, limbs and tail. The neck between the head and the torso is not clearly defined in shape, but the head can be rotated flexibly.

On the head can be seen a mouth, a pair of nostrils, a pair of eyes, and a pair of ear holes. If there is no external auricular foramen, the tympanic membrane is located on the surface, and in some species, the tympanic membrane is covered with fine scales or large cone-shaped scales. The head is rescaled.

The number and arrangement of large scales on the back of the head of various lizards are consistent, which can be used as the basis for classification and identification. The upper and lower lip scales and neck scales are also relatively consistent, which can also be used as a reference for classification.

The shape, size, number of rows, and structure of the scales compounded outside the trunk are also the basis for classification and identification.

The front and rear limbs are divided into humerus (thigh), forearm (tibia), palmar (plantar) and fingers (toes). The front and rear limbs each have 5 fingers, toe fingers, and claws at the end of the toes.

The cloacal foramen is located on the ventral surface of the base of the tail and is the boundary between the tail and the trunk.

The difference between the sexes of lizards is conducive to mutual identification during the breeding season, and the performance of daytime lizards is more obvious. Nocturnal lizards may identify the opposite sex by smell. In the iguana family, such as calotes and japalura, males have longer scales on the nape of the neck.

In droco, acanthosaura, etc., males have long, brightly colored laryngeal pouches. The male of the skink (eumeces) has a large proportioned head, and the head and neck are often red. Males with bright pigmented spots are one of the most prevalent differences between the sexes of lizards.

For example, the male of the snake lizard (Ophisaurus) has several short emerald green transverse spots on the back, the male of the grass lizard (Takydromus) has bright green longitudinal stripes on the side of the body, and the male of the sand lizard (Phrynocephalus) has erythematous spots on the armpit or ventral surface, etc. This particular spot in males tends to be particularly vivid during the breeding season.

Lizards are no different from dinosaurs in every way.

But they are defined differently. In 1842, British paleontologist Richard Owen published the book "British Fossil Reptiles", in which he first used the word "dinosaur". The original meaning of the noun comes from the Greek words "deinos" (terror) and "sauros" (lizard).

He also added a footnote in **, which in English: fearfully greatest a lizard, which translates into Chinese: very terrible lizard.

Since then, many dictionaries have interpreted dinosaur as terrible lizard, i.e. a terrible lizard.

The international definition of dinosaurs is now that it is an extinct terrestrial reptile that lived about 100 million to 65 million years ago and could walk upright with hind limbs.

The dinosaurs are extinct, the lizards are not.