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Vusala Senem MikailVusala Senem Mikail 26 FEBRUARY 2020 692 views 6 min. read

Areas where dinosaur fossils are found

692 views 6 min. read
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It is weird to imagine that dinosaurs, familiar to us from movies or animations, have been walking on the Earth back in times. 

 

 The existence of these giant creatures has been known to humanity through the found fossils. The dinosaurs were discovered by paleontologist Richard Owen in 1841 introduced the age of dinosaur in the world of science. More than 850 species of dinosaurs have been found in subsequent studies. Each found fossil increased the attention to the dinosaurs, which were fragments of a vast ecosystem once existed. Their living conditions, the causes of mass devastation, and the time they live are some of the most critical questions that still need to be answered. 

 

The causes of the extinction of the dinosaurs 

 

Of course, the world of science has thought over this question for many decades. At this point, it is necessary to consider some of the possible causes of the extinction of dinosaurs. The reasons include meteor shower, a collision of the world with comets, and strong volcanic eruptions on Earth. In 2016, Science magazine published a study revealing some facts by a group of scientists from around the world to identify the causes of the dinosaur extinction. Scientists from the US, Switzerland, and the Netherlands first tried to define the date of the dinosaurs’ extinction. They determined that this process took place about 66 million 38 thousand years ago. It would then be possible to clarify the exact reasons for the destruction.

 

The most popular theory regarding the dinosaurs’ extinction was put forward in the 1980s. The hypothesis put forward by father and son Luis Alvarez, and Walter Alvarez, known as the Alvarez hypothesis. According to them, gas and soil layer dramatically changed the atmosphere, and climate had been formed as a result of the collision of a large-scale meteoroid with Earth 66 million years ago. It also led to a sharp drop in temperature. These have led to the destruction of much vegetation and the food chain. Failure to meet the giant dinosaurs’ needs for food and heating had reduced living conditions to zero, leading to their extinction.

 

The researches, carried out in underwater and the center of a 180-km-large Chicxulub crater formed in the Yukon state of Mexico as a result of the alleged comet strike, have revealed several points. Thus, it is assumed that dust and gas eruption occurred during the collision could last for years.

 

An article published in the journal “National Geographic” in June 2019 contains the latest discoveries from the scientists. Besides, the fossils found during excavations in North Dakota, much valuable innovation has been achieved. The remnants of all the existing ecosystems before the mass destruction have been obtained. It has been suggested that the fragments, called tektite, found in the fossils’ layers have only cosmic backgrounds, which were reinforced in the atmosphere and showered on the surface.

 

Analyzing other theory, mass destruction caused by volcanic eruptions, we will come across with the rationale of scientists here. It has been estimated that the area known as the Deccan Plateau in India was formed by volcanic eruptions about 60 million years ago (when the dinosaurs were destroyed). The formation of such a sizeable tectonic zone also means the occurrence of a massive volcanic eruption. It could have led to the existence of dust and gas layers in the atmosphere for years. As a result, the temperature had dropped, and the vegetation had disappeared. The article mentioned above states that both theories, i.e., meteoroid collisions and volcanic eruptions, have caused the dinosaurs’ extinction. Thus, the ecosystem weakened by volcanic eruptions could be destroyed as a result of a meteoroid collision. 

 

Evidence of the facts listed may still require years of extensive and challenging research. However, visiting the area where dinosaur fossils have been found is not that difficult. These areas are now open to tourists.

 

Kotelnich-Russia

 

Dinosaur fossils were discovered during excavations in 1933 in Kotelnich, Kirov Area, Russia. Research in a large area 25 km from the Vyatka River, Kotelnich, has given results. The study is still ongoing in Kotelnich, known as the settlement where the first skeleton of Parareptilia was discovered. In 1948, 11 Pareiasaurus skeletons were found in an excavation site covering 12km area. This finding has amazed scientists and has been assessed as the ancestor of the giant land turtles today. The exhibits discovered during the research can be found at the Paleontology Museum located in the settlement.

 

Lake Rukwa - Tanzania

 

Tanzania is also known as the area where dinosaurs once lived. The reason was the discovery of a skeleton of Titanosaurs that lived in the area for 100 million years. The fossils found in the Rukwa Lake basin surprise with the size. For comparison, it should be noted that the size of the discovered skeleton is equal to the size of several elephants. The tyrannosaur is included in the list of plant-eating dinosaurs. The discovery of fossils of this type in Africa was unexpected for the world of science. Also, the fossils of Nyasasaurus have been found in Tanzania. It is well-known that the Nyasasaurus lived in the earliest period on Earth more than 250 million years ago. 

 

Aksu-Zhabagly- Kazakhstan

 

One of the areas where dinosaurs lived is Aksu- Zhabagly Nature Reserve in Kazakhstan. These sites belong to the Jurassic period. It is well known that these areas were once flooded by the Tethys Sea. The fossils of pliosaurs and flying reptile species have been found here, including the Karatau Lake Basin. The fossils are exhibited at the Nature Museum of Kazakhstan. Aksu-Zhabagly Nature Reserve is open to tourists.

 

Gobi Desert - Mongolia

 

Fossils of dinosaurs found in the Gobi Desert are among the most astonishing findings in the world. A dinosaur skeleton was found here as well. The dinosaur eggs were first discovered here. It was a great discovery for the world of science. Eggs of almost all dinosaur species were found during the excavation in the Bain-Bulak region. The dinosaur eggs found in the Ulanqab region in 1968 were much more extensive. Unfortunately, no embryo has been detected in eggs weighing 1.7 liters.

 

Australia

 

The Australian fauna is still rich in different animal species. A dinosaur’s upper jawbone has been found in rocks along Victoria’s Gippsland coast. The found kangaroo-size sample belongs to a grass-eating dinosaur- tyrannosaur. The discovery of tyrannosaur fossils in the site has undermined several theories, as the scientists have previously assumed that this species lived only in the Northern Hemisphere.

 

In 2007, another fossil pattern was discovered in Queensland, Australia. However, scientists could not refer to this sample to any group. This species of dinosaur called “Zach” was dated back to 90 million years ago. Dr. Henry explains this situation as it carries the traces of a lost world. It is only the fossils that come to us from this world. An article on fossil analysis published in the journal Paleontology stated that the samples belonged to a “two-legged, fast-moving dinosaur species.”

 

Argentina - Patagonia

 

The most striking of the fossils discovered so far are those found in the Patagonia region of Argentina. Patagonia has large paleontological areas and fossil sites. It is said that the fossils date back to about 90 million years ago. During the study, the more gigantic skeletons have been found. It is supposed that the dinosaurs were as tall as the 3-story building. It is one of the three most giant dinosaurs found in the world. In an interview with Reuters, Argentine paleontologists comment: “This is a new species, a new group. This finding points to a new Titanosaur breed.” During the investigation in Argentina, the fossils of the vast ecosystem were discovered, including the samples of trees, leaves, and various fishes. 70% of the fossils can provide useful scientific information. The examples found here make up to 10% of the world’s fossils.

 

China -Liaoning

 

The Mesozoic fossils date back to 110 or 130 million years. During this time, some mammals, birds, and plants have been formed. The fossils found in Liaoning survived until today in excellent condition due to the protection of fossils from oxygen in clay and ash layers. As a result, the soft body shapes of the dinosaurs were less decayed. Not only bone, but whole skeletons were found there. Some fossils were in such a good condition that it was possible to determine whether they were male or female.

 

Italy - Besano

 

In 1993, a species called Besanosaur was found in the Besano region of Italy. Ichthyosaur fossils of the Middle Triassic period have been discovered in rock formations. Scientists have done research here using X-ray technology without damaging fossils. In 1996, new examples were found in another Italian city, Saltrio. A species called the Saltriosaur belonged to a class of predators. The fact that the Saltriosaur had three toes on its front legs was also a highlight of the paleontologists.

 

Thailand - the latest found fossils 

 

A few days ago, at a conference organized by the Thai Department of Mineral Resources, it was announced that another dinosaur species had been discovered in the country. Dinosaurs with large teeth, such as sharks, raised great interest. Researchers at the University of Thailand and Fukui Prefecture point out that the species known as Siamraptor dates back to 115 million years ago. The uniqueness of the fossils is that they carry the characteristics of four different dinosaur species. 

 

Research has revealed dinosaur fossils throughout the continent. The cause of the extinction of these giants is still not fully proven. But every piece and every fossil found brings humanity a little closer to the dinosaurs.

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Vusala Senem Mikail Journalist

Vusala was engaged in pedagogical activities for a while. Music inspires her to read classic and autobiographical books, to travel, to constantly improve herself. She is interested in paintings by Rob Gonzalves and Salvador Dali. She makes the steps on the way to becoming a writer, researcher-journalist, blogger.

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