The eggshells suggest that the dinosaurs were really warm blooded. New Yale research has sparked controversy over whether the dinosaurs were hot-blooded or cold-blooded. The chemistry of dinosaur eggs has been analyzed in new research.
A new fossil egg has analyzed the debate over whether dinosaurs were cold-blooded like modern reptiles or modern warm-blooded birds.
New research by Yale scientists in the US has looked at dinosaur egg shells in the way the oxygen and carbon atoms within them were organized, suggesting that they formed inside bodies with hot blood. Dr. Robin Dawson stated that dinosaurs sit at an evolutionary point between birds, which are warm-blooded and reptiles, which are cold-blooded.
A cross section of a testicle shows mineral development. Pic: Robin Dawson. Our results suggest that all major dinosaur groups had warmer body temperatures than their environments, Drs. Dawson said about the research, while she was a doctoral student in geology and geophysics at Yale.
The research follows a new theory that suggests that dinosaurs evolved into birds that shrunk to become warm-blooded. Reptiles are cold blooded or ectothermic, which means they cannot control their body temperature. Mammals and birds, which come directly from a group of dinosaurs called theropods, are warm-blooded or endothermic.
Which means they produce their body temperatures. Generating your own heat is an expensive lifestyle for animals and requires very high energy consumption. However, it offers benefits in that it allows animals to function at higher levels when there are no external heat sources nearby, such as at night or winter.
The fossilized bones of a giant theropod dinosaur, Gigantoratrapt irelensis, are shown to the media in Beijing on June 13, 2007, the remains of giant dinosaurs, strikingly bird-like, were revealed in Inner Mongolia, China. The animal, which lived in the Late Cretaceous period (about 70 million years ago), is believed to have a body of approximately 1,400 kg.
Which is surprising because most theories suggest that carnivorous dinosaurs got smaller. Theropod dinosaurs are the bird’s most direct ancestor. Dr. Dawson is the lead author of the new study in the journal Science Advances that tested egg fossils from three major groups of dinosaurs.
Using a technique called subject isotope paleothermometry, the researchers discovered what the dinosaurs’ internal temperatures were as the eggs formed inside them. Species shells, including carnivorous theropod trodone, duck-billed myasaura and megalith, were grown at temperatures well above their environment.
“We found that this indicates that the ability to metabolize their temperature above the environment was an early and evolving trait for dinosaurs,” said Dr. Said Dawson. Myasaura is a large duck-billed dinosaur that lived in the Cretaceous Era in North America with various hatches shown here.
The large duck-billed dinosaur has increased 44 degrees Celsius (111.2 degrees Fahrenheit) since Myashore. Myasaura was a large duckling dinosaur that lived in North America. One of the implications of the study refers to the development of feathers in relation to their development in birds.
“It is possible that dense feathers were chosen primarily for isolation, as body size decreased in theropod dinosaurs in the path of development of modern birds,” said Dr. Dawson. Dinosaurs Was Warm-Blooded, Using A Novel Technique Called Fossil Eggshells Suggests Study.
The Paleothermometry Of Clustered Isotopes. An international team of Paleothermometry analyzed the egg fossils that represent the three main groups of dinosaurs and discovered that these creatures were characterized by warmer body temperatures.
A dinosaur similar to a cassowary called Bbilong sinensis in egg incubation. Researcher at the Department of Geology and Geophysics at Yale University, Dr. Robin Dawson said: “Dinosaurs sit at an evolutionary point between birds, which are warm-blooded and reptiles, which are cold-blooded.”
“Our results suggest that all major groups of dinosaurs had warmer body temperatures than their environments.” Dr. Dawson and his colleagues applied their novel method to the testicles of three main groups of dinosaurs: Ornithisia, Soropodomorpha and Theropoda.
He explained: “The paleothermometry of closed isotopes is based on the fact that the order of the atoms of oxygen and carbon in the shells of fossilized eggs is determined by temperature.” Once you know the order of those atoms, you can calculate the internal temperature of the mother dinosaur’s body.
“For example, the eggshells of a trodone, a small sludge for eating meat, were tested at 38 °, 27 ° and 28 ° C (or 100.4, 80.6 and 82.4 ° F).” The large Myasora duck-billed dinosaur egg shell produces a temperature of 44 ° C (111.2 ° F).
The eggshells of Trudon and Myasora were from Alberta, Canada. Meanwhile, fossilized dinosaur egg fossils were tested at 36 ° C (96.8 ° F) in a classification of a species restricted to Romania’s dinosaur egg megalith.
Petrographic microscope images of dinosaur eggs: (A – C) well-preserved troodon egg shells from Alberta, Canada; Arrows and horizontal lines point to the approximate boundary between mammals and prismatic layers; The presence of two calcitic layers is diagnostic of non-avian theropods; (D) Mysoura Haidersaur egg from Alberta, Canada with international preservation.
The diagnostic units of the acute table are indicated by white arrows; (E) Romanian egg shell (Ospactis megalulithus cf. M. cirugui) from the town of Tusetia, Romania, with intermediate conservation; Clinical radiation acicular crystals indicated by white arrows; (F) Poorly preserved pieces of Lambosaurusine hordosaur eggs from Alberta, Canada.
The scientists performed the same analysis on cold-blooded invertebrate shells similar to the shells of dinosaur eggs. This helped the team determine the temperature of the local environment and whether the dinosaur had a higher or lower body temperature.
“Troodon samples were 10 ° C (50 ° F) warmer than their atmosphere, Myasaura samples were 15 ° C warmer (59 ° F) and Megalithius samples were 3-6 ° C (37.4-42.8 °).) They were. Fahrenheit) hot, “said Dr. Dawson.
“What we found suggests that the ability to metabolize its temperature above the environment was an early and evolving feature for dinosaurs.” The results have been published in the journal Science Advances.
The 40-foot-long hunter who crushed bones inside a five-foot-long head is a legend. Now, a look at two medium-sized bones, the immature T. Rex also informs scientists about the terrible teenagers of the dictator King.
In the early 2000s, two relatively small T-shirts from Carter County, Montana, of the Burpee Natural History Museum in Rockford, Illinois. Rex fossil skeletons were collected. The nicknames “Jane” and “Patty” would have been a little longer and double that of the tortured draft horse.
The team led by Holly Woodward, PhD, of the Oklahoma State University Health Sciences Center, T. Studied Jane and Pete to better understand the history of Rex’s life. The study “Growing Tyrannosaurus T-Rex:
Histology refutes the pygmy ‘nanotaraneus’ and supports the division of the oncogenetic niche into the juvenile Tyrannosaurus” appears in the peer-reviewed journal Journal Advance.
Co-authors include Jack Horner, a member of the president of Chapman University; Nathan Myhrold, founder and CEO of Intellectual Ventures; Katie Tremaine, a graduate student at Montana State University; Scott Williams, paleontology laboratory and field specialist at the Rocky’s Museum.
Lindsey Zanno, head of paleontology at the Natural Sciences Museum of North Carolina. The complementary histological work was carried out in the Diane Gabriel Histology Laboratories at the Rocky Mountain Museum / Montana State University.
“Historically, many museums would collect fossils of larger and more influential dinosaur species to display and ignore others,” said Woodward. “The problem is that these small fossils can come from small animals. Therefore, there are large gaps in our understanding of how dinosaurs grew, and T. rex is no exception.”
The small size of Jane and Patty makes them incredibly important. Now scientists can not only study that T. How bones and proportions changed as Rex, but they can also use paleontology, the study of fossil bone microstructures, to learn about youth growth rates and age.
Woodward and his team pulled thin slices of the bones from Jane and Patty’s legs and examined them with great magnification. “It’s always surprising to me that if you have something like a giant fossil dinosaur bone.
It’s also a fossil at the microscopic level,” said Woodward. “And by comparing these fossil microorganisms with similar characteristics found in modern bones, we know they provide clues about metabolism, growth rates and age.”
The team determined that the youngest T. Los Rexes were growing as fast as today’s warm-blooded animals, such as mammals and birds. Woodward and his colleagues also discovered that counting annual rings inside the bone.
And as well as counting tree rings, had led T-Rex to be youthful when Jane and Patty had died; 13 and 15 years old respectively.
It was speculated that the two smaller skeletons were not T-Rex, but a relative nanotairene of a small pygmy. Bone studies with histology led researchers to conclude that juvenile skeletal T. Rex was not a new species of dragon.
Instead, Woodward points out, as T. to reach adult size. It had taken Rex twenty years, the tyrannical king may suffer mature changes. Teens like Jane and Patty were sharp, with floating legs and knife teeth to bite, while adults were crushing bones.
Not only that, but Woodward’s team discovers that T.W. Growing Rex can be a good trick: if your food source was scarce for a particular year, it didn’t grow as much and if the food was plentiful, it increased a lot.
“The space between annual growth rings records how much a person grows from one year to the next. The space between rings between Jane, Pete and even older people is inconsistent, the space with a few years.” It is close, and in other years it has spread. Besides, “said Woodward.
The research conducted by Woodward and his team has written a new chapter in the early years of the world’s most famous dinosaurs, providing evidence that he assumed the crown of the dictator king long before reaching adult size.
The researchers found Teen-age T-rex, find out more about T-Rex: Without a doubt, Tyrannosaurus rex is the most famous dinosaur in the world. The 40-foot-long hunter who crushed bones inside a five-foot-long head is similar to the legend.
Now, a look at the two medium bones, the immature T. Rex also allows scientists to learn about the dictator King’s terrible teenager. In the early 2000s, two relatively small T-shirts from Carter County, Montana of the Burpee Natural History Museum in Rockford, Illinois.
T-Rex fossil skeletons were collected. The nicknames “Jane” and “Patty” would have been a little longer and double that of the tortured draft horse. The team led by Holly Woodward, PhD, of the Center for Health Sciences at Oklahoma State University, t. He studied Jane and Pete to better understand the story of T-Rex’s life.