What are the current genera and species of dinosaurs and how many species of dinosaurs are there

Thousands should not exceed 2,000.

900 1200 species. There are many types of dinosaurs, and scientists divide them into two major groups according to the shape of their fossilized bones, one is called ornithosaurs and the other is called saurosaurs. From their fossilized teeth, it can also be inferred whether they are carnivorous or herbivorous.

This is only a general classification, according to the recovery of dinosaur bone fossils, we found that in fact, there are not only many types of dinosaurs, but also their shapes.

Some of these dinosaurs flew in the sky, some swam in the water, and some climbed on land. It has been estimated that there are about 900 to 1,200 species of dinosaurs, and scientists believe that the number of dinosaurs that have been discovered is about 1 4 of the dinosaur species that have ever existed.

Dinosaurs were large in size overall. By the standard of dinosaurs, sauropods are the giants of them. During the long age of dinosaurs, even the smallest sauropods were larger than the other animals in their habitat, and the largest sauropods were several orders larger than any animal that appeared on the surface.

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 were 111 genera (17 suspicious) and 165 species (37 suspicious) 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 still very limited, so there is no doubt that the discovery of this field will continue, especially in countries such as China and Argentina, which will become hot spots for dinosaur fossil research.

Dinosaurs were a group of reptiles that lived on Earth between about 100 million and 65 million years ago, and they survived on Earth for nearly 100 million years before becoming completely extinct during a mass extinction event at the end of the Cretaceous period. Scientists' estimates are not entirely consistent regarding the number of dinosaur species, but based on existing research, at least 700 known species of dinosaurs can be found. These dinosaurs were very diverse and were divided into different major and sub-categories.

It is worth noting that although the number of more than 700 known dinosaurs is relatively large and localized, considering that the dinosaurs are extinct, modern humans are far from fully grasping the knowledge of dinosaurs. Many dinosaur fossils have been found in different places, and scientists are constantly studying these fossils in order to identify new dinosaur species. In addition, because there were many dinosaurs with similar characteristics, some scholars also hold the opinion that they are classified as the same species.

Overall, the number of known dinosaur species is very large, but this does not mean that we have a comprehensive understanding of the species diversity of the Kaemon dinosaurs. With the continuous advancement of science and technology and the discovery of dinosaur fossils, we may be able to better understand the historical and ecological place of these extinct creatures on Earth. <>