What animals became extinct at the same time as the dinosaurs?

Updated on science 2024-03-12
9 answers
  1. Anonymous users2024-02-06

    Many species of Foraminifera are extinct, the genera of Stony Corals 60 are extinct, all of the cephalopods are extinct except for the Nautilus subclass and the Sheath subclass, the superfamily Cangsauridae, the pinnisaur order, and the pterosaur order are all extinct, the genus Dinosaurus should also be extinct, and many primitive marsupials in mammals are also extinct.

  2. Anonymous users2024-02-05

    The species that became extinct at the same time as the dinosaurs were: more than 50% of the invertebrate species in the ocean.

    Marine invertebrates refer to one with the most numerous species and phyla, accounting for the vast majority of marine animals. Invertebrates are animals that do not have a vertebrate on the dorsal side, and they are the original form of the animal. It accounts for 95% of the total number of animal species and is distributed all over the world.

    The ocean is the oldest habitat and life originates from the ocean. As early as the Cambrian, many higher-order taxa such as phylum and class representatives appeared at the same time, but later many categories became extinct, leaving only fossils or a few living fossil species, such as nautilus, horseshoe crab, sea bean sprouts, etc., some of which continued to descend, and many diverged into many varieties.

    As far as the phylum extant animals are concerned, they can be roughly divided into more than 30 phyla (taxonomists still have new discoveries, revisions and synthesies on the highest taxa from time to time), of which there are as many as 8 phyla that live freely in the ocean, and 14 phyla are only distributed in the ocean; There are 14 phyla distributed in freshwater, but the animals that do not have the whole phylum are only produced in freshwater.

  3. Anonymous users2024-02-04

    Dinosaurs became extinct. It generally refers to the mass extinction event that occurred on the earth 65 million years ago, although the cause of the event is not yet determined, but it is generally believed to be formed by a meteorite impact, after which the dinosaurs gave way to the supremacy of the earth, mammals.

    Began to rise. So what other animals went extinct along with the dinosaurs in this extinction?

    In fact, this question is not accurate, from the latest fossil discoveries and scientific research results, birds belong to the direct line of dinosaurs.

    offspring, so the dinosaurs were not actually completely extinct, but spread their wings and flew into the sky. So now it's generally accurate to say that the extinction of non-avian dinosaurs.

    But even if the dinosaurs weren't completely extinct, the mass extinction event 65 million years ago was real, and the catastrophe left reptiles.

    Lost domination over the planet.

    At present, the understanding of 65 million years ago mainly comes from fossils, and it is difficult to judge what creatures lived in the same era as the dinosaurs 65 million years ago, but it is only estimated that more than 15 kilograms of life on land at that time were extinct. And there is another fact that many people are not very clear, that is, in the era of dinosaurs rampant in the world, in fact, dinosaurs are only the overlords of the land, and the overlords of the sky and sea are not dinosaurs. We often talk about such as pterosaurs and dragons.

    They are not dinosaurs, but large reptiles that live in the same era as dinosaurs.

    Dinosaurs are a general term for a large group of reptiles, but not all large reptiles can be called dinosaurs, in fact, other large reptiles lived in the same era as dinosaurs, such as large crocodiles and turtles.

    snakes, etc. Among reptiles, only species belonging to the order sauropods and ornithischians are considered dinosaurs.

    In fact, in the age of dinosaurs, the pterosaurs that ruled the sky, the ichthyosaurs, the cangsaurs, and the plesiosaurs that ruled the seas.

    None of them belonged to dinosaurs. But during the mass extinction 65 million years ago, these large reptiles that once ruled the planet with the dinosaurs disappeared. So the cangsaurus, pterosaur, plesiosaur are all species that disappeared with the dinosaurs.

  4. Anonymous users2024-02-03

    When the dinosaurs became extinct, many ancient sea creatures also became extinct, such as many shellfish, corals, mollusks, etc. Some of the ancient birds on land also perished. The extinction of the dinosaurs marked the end of an era.

  5. Anonymous users2024-02-02

    There are giant birds like Gaston, in addition to giant birds, there are also a variety of terrestrial crocodiles, such as cibei crocodiles and sawtooth crocodiles, etc., the giant birds in Asia, Europe and North America are extinct, and many primitive mammals in Asia, Europe and North America, such as marsupials and polylodonts, also compete with the general order of Laoa and extinct.

  6. Anonymous users2024-02-01

    Including many shellfish, corals, and mollusks. Reptiles in the water.

    The dinosaurs disappeared, and many birds died.

  7. Anonymous users2024-01-31

    Chinese small salamander belongs to the amphibian, with tails, small salamanders suborder cryptogills, is in the same age as the dinosaurs, more than 300 million years ago ancient rare animals, its back is black, the abdomen is light brown, there are dark spots, the tail is flattened, the end is blade-shaped, 4 feet, 4 toes on the front foot, 5 toes on the hind foot, the adult body length is generally 80 to 15 5 mm, the weight is about 80 to 150 grams.

    The crocodile lizard is a contemporary of the dinosaurs and is regarded as a relict living fossil. It is a national endangered animal.

  8. Anonymous users2024-01-30

    65 million years ago, a huge asteroid suddenly "visited" the Earth, and the Earth was instantly plunged into disaster.

    The violent impact triggered a large area of volcanic eruptions, ** and other natural disasters, a large amount of magma erupted, spread wantonly on the land, and animals and plants were burned by magma.

    Volcanic dust obscured the sky, plants died without sunlight, and animals died in large numbers due to lack of food.

    Global disasters have brought about drastic changes in the climate, and Zheng-tolerant animals that are unable to adapt to climate change are gradually dying.

    Dinosaurs, pterosaurs, plesiosaurs, and cantosaurs were completely wiped out after this incident, and their carcasses were covered by the wind and sand and gradually turned into fossils.

  9. Anonymous users2024-01-29

    Dinosaurs are a general term for a group of reptiles that appeared in the Mesozoic era, that is, the Triassic, Jurassic and Cretaceous periods, with vigorous limbs, long tails and huge bodies are portrayal of most dinosaurs. They mainly inhabit woodlands or open areas on the shoreline plains or coastal plains of Hailbolts.

    The dinosaurs disappeared at the end of the Cretaceous Decade 65 million years ago, becoming a mystery in the history of the evolution of life on Earth, which is still unsolved. All of the earth's past creatures are recorded in fossils. In the strata of the Mesozoic era, many dinosaur fossils have been found.

    A large number of bones can be seen in a variety of shapes. However, in the Cenozoic strata that followed, there were no fossils of non-avian dinosaurs at all, which inferred that non-avian dinosaurs became extinct together during the Mesozoic, and now only birds remain, and most scientists agree that birds belong to dinosaurs.

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