Ví dụ về việc sử dụng Fossil record trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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In other words, the fossil record has let Darwin down.
But these hypotheses are not reflected in the fossil record.
The fossil record of this family dates back to the Miocene epoch.
Pages 303- 316 in Advances in Legume Systematics,part 4, the fossil record(P. S. Herendeen and D.L. Dilcher, eds.
The fossil record for pipids is relatively good, with 12 extinct species known.
We then turn around and use our interpretations of the fossil record as evidence for the theory of evolution.
According to the fossil record, hagfish have existed for over 300 million years, which means they were already old when dinosaurs took over the world!
One of the star pieces of the project is the Lady Dior‘Fossil Record' bag, which features a flower relief embossed into silver leather.
The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic, and consequently they are considered a type of dinosaur in modern classification systems.
Ergaster remained stable for about 500,000 years in Africa before disappearing from the fossil record around 1.4 million years ago.
The first Apis bees appear in the fossil record at the Eocene- Oligocene(23-56 Mya) boundary, in European deposits.
For example, up until 1938, paleontologists accepted the idea that coelacanths(an ancient fish)went extinct at the time that they last appear in the fossil record about 80 million years ago.
Tarbosaurus is very well represented in the fossil record, known from dozens of specimens, including several complete skulls and skeletons.
The fossil record indicates thatbirds evolved from theropod dinosaurs during the Jurassic Period and, consequently, they are considered a subgroup of dinosaurs by many paleontologists.
What we find from the evidence around us and from the fossil record is that, as the law of biogenesis states, life can only arise from life.
The fossil record tells us that Glossopteris plants commonly had tongue-shaped leaves found in thick mats, leading scientists to think they were deciduous.
This background rate indicates howfast species would be expected to disappear in absence of human endeavor, and it's mostly measured using the fossil record to count how many species died out between mass extinction events.
The researchers found that the fossil record for the dinosaurs studied, ranging from gigantic sauropods to two-legged meat eaters such as T.
As fossilization is an uncommon occurrence, usually requiring hard parts(like bone) anddeath near a site where sediments are being deposited, the fossil record only provides sparse and intermittent information about the evolution of life.
The fossil record appears to show that the rate of extinction is slowing down, with both the gaps between mass extinctions becoming longer and the average and background rates of extinction decreasing.
Hard anatomy characters such as teeth and bones preserve well in the fossil record and are the main source of information about how fossil animals are related to their modern counterparts.
The fossil record indicates that the evolution of camelids started in North America, from which, six million years ago, they migrated across the Bering Strait into Asia and then to Africa, and 3.5 million years ago through the Isthmus of Panama into South America.
Alfio Alessandro Chiarenza, a doctoral researcher of paleontology at Imperial College London,said the fossil record clearly demonstrates that things like major asteroid impacts, prolonged volcanic eruptions, and rapid climate change are the real killers, not marauding menaces from Titan.
Mammals continued to expand their range: eutriconodonts produced fairly large, wolverine-like predators like Repenomamus and Gobiconodon, early therians began toexpand into metatherians and eutherians, and cimolodont multituberculates went on to become common in the fossil record.
This is because it confirms that the fossil record offers an extremely accurate account of how these amazing animals evolved over time and gives clues as to how mammals and birds evolved from them..
This is the first time we have made a mechanistic prediction about what caused the extinction that can be directly tested with the fossil record, which then allows us to make predictions about the causes of extinction in the future,” said Justin Penn, an oceanographer from the University of Washington.
On the face of it the fossil record shows a decrease in diversity during the last~10 million years of the Mesozoic, but I don't think the fossil record of the late Mesozoic is sampled well enough to demonstrate a trend leading inexorably to extinction.
Discovery of this new species was a shock to us because prior to this, the fossil record suggested that the evolutionary tree of platypuses was relatively linear one,” said Dr. Michael Archer of the University of New South Wales, a co-author of the study.
Evidence of marine regressions and transgressions occurs throughout the fossil record, and these fluctuations are thought to have caused or contributed to several mass extinctions, among them the Permian-Triassic extinction event(250 million years ago) and Cretaceous-Paleogene extinction event(66 Ma.
As a result of the tremendous advances in the study of genetics,molecular biology, and the acknowledgement that the fossil record does not provide any support for the theory of evolution, a growing number of scientists have either publicly rejected evolution or have expressed very serious reservations about Darwin's theory..