How many types of dinosaurs are there? How many types of dinosaurs are there?

Dinosaurs were a large family in the Mesozoic Era and dominated the animal world at that time. In terms of time, dinosaurs lived for hundreds of millions of years; In terms of distribution, it covers all seven continents of the earth. However, most dinosaurs were found in the United States, Mongolia, China, Canada, England, and Argentina.

In the United States, 64 genera of dinosaurs have been discovered, ranking first in the world. 40 genera were found in Mongolia, 36 in China, 31 in Canada, 26 in the United Kingdom, and 23 in Argentina. (Animals that are similar to each other are taxonomically classified into the same "genus", such as cats, tigers, lions, leopards, etc., all belong to the genus Cats, but they belong to different species.)

Most dinosaur genera have only 1 species, and a few dinosaur genera have 2 or 3 species. According to statistics, there are 285 dinosaur genera found so far, with 336 of each. We believe this is not the actual number of genera and species of dinosaurs that ever lived on Earth.

There are also a large number of dinosaur bones buried deep in the ground, which have not yet been discovered. There are also many dinosaurs who may have traveled in the world in vain, leaving no relics behind after death. Professor Dodson of the University of Pennsylvania in the United States has been studying for many years how to estimate the number of genera of dinosaurs that have survived on Earth.

He estimates that 900-1,200 genera of dinosaurs once lived on Earth. But only some of them have been discovered. And very few have been seriously excavated and studied after discovery.

According to Dodson, the number of dinosaur genera we have found is about 1 3-1 4 of the actual number. This shows that the task ahead of dinosaur experts is still quite enormous, and the discovery and research of dinosaurs has a long way to go. With the deepening of dinosaur research, new dinosaur genera and species will continue to be discovered.

As long as the bones remain, they will not be buried, and there will always be a day when they will become famous!

Recently, someone counted all the dinosaurs in the world that have been named, including some invalid names that have been abolished. The result is that to date, a total of 775 genera of dinosaurs have been named, and if all suspicious names are removed, this number may be much reduced.

Among them, theropods have 194 genera (52 suspicious) and 258 species (102 suspicious); There are 111 genera (17 suspicious) and 165 species (37 suspected) of protosauropods and sauropods; There are 204 genera (52 suspicious) and 299 species (85 suspected) in the ornithischian hips. A large proportion of these genera and species have been named in the last 10 years. The famous American dinosaur expert Dowson and others have made statistics on the discovery of new genera and species of dinosaurs in the past 10 years.

It was found that there were 336 well-established dinosaur genera (as of 1995), of which nearly 20 were named after 1988. Statistics show that the dinosaur excavation and research center has shifted from the traditional North America and Europe to Asia and South America. Among the new genera of dinosaurs discovered between 1989 and 1995, China, Mongolia and Argentina were among the highest.

In recent years, a large number of new genera and species of dinosaurs have been discovered and described, and the upsurge of new dinosaur research and discovery will continue for at least 20 years. Even so, these discoveries represent only a small fraction of the entire genus and species of dinosaurs that once lived on Earth. It is estimated that from the middle Triassic to the end of the Cretaceous period, there may have been a total of 50,000 genera and nearly 500,000 species of dinosaurs that survived on Earth.

For various reasons, only a small part of it has been preserved as fossils and found. Of course, there are dissenting opinions on this estimate, arguing that there may not be so much. In any case, the number of dinosaur genera and species that have ever lived on Earth is undoubtedly much larger than the number of genera and species that have been named, and the areas and layers we have excavated are very limited, so there is no doubt that discoveries in this field will continue, especially in countries such as China and Argentina that will become hot spots for dinosaur fossil research.

Two kinds: baby boy and baby girl. Hee-hee......Definitely right!!

There are now more than 800 known dinosaur species.

Dinosaur (English name: dinosaur) is a general term for a group of reptiles that appeared in the Mesozoic era (Triassic, Jurassic and Cretaceous), with vigorous limbs, long tails and large bodies are the portrayal of most dinosaurs. They mainly inhabit woodlands or open areas on lakeshore plains (or coastal plains).

In 1841, British scientist Richard Owen studied several fossilized lizard bones and named them dinosaurs, meaning "terrifying lizards".

There are many types of dinosaurs, and their body shape and habits vary greatly, with the largest fragile diplocosaurus being more than 50 meters long, while the smallest hummingbird may be less than 10 centimeters. In terms of eating habits, there are docile herbivores and ferocious meat eaters, and there are omnivorous dinosaurs that eat both meat and vegetables. The dinosaurs are a large family that has ruled the earth for about 80 million years (100 million years ago --- 65 million years ago).

The mystery of extinction: The dinosaurs suddenly disappeared at the end of the Cretaceous period 65 million years ago, becoming a mystery in the history of the evolution of life on Earth, a mystery that no one has solved to this day. The Earth's past life has become extinct, but it is recorded in fossils.

In the Mesozoic strata, many dinosaur fossils have been found. There are a large number of bones that can take on a variety of shapes. However, in the Cenozoic strata that followed, there were no fossils of non-avian dinosaurs at all, so scientists speculate that non-avian dinosaurs became extinct together during the Mesozoic Era, and only birds remain, and most scientists now agree that "birds belong to dinosaurs".

There are at least 650 to 700 species of dinosaurs described in the world, and the statistics show that to date, a total of 775 genera of dinosaurs have been named.

Scientists believe there are about 700,800 species.

That's a few big points. Or how many small species.

The first species: vegetarian dinosaurs The second species: carnivorous dinosaurs The third species: omnivorous dinosaurs.

Vegan dinosaurs only eat green vegetables such as leaves and grasses. Carnivorous dinosaurs will eat meat, all meat. Omnivorous eats everything (can eat).

I won't talk about the small species, it's too much, and you don't have a reward, so I'll stop here.