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News About The Primordial Earth
August 22, 2017
Mechanisms explaining positional diversity of the hindlimb in tetrapod evolution
Nagoya, Japan (SPX) Aug 21, 2017
In the evolution of tetrapods, the position of the hindlimb has diversified along with the vertebral formula, which is the number of small bones forming the vertebra. Tetrapods, as the name implies, are species that have four feet. However, this group also includes many other animals without four or any feet, such as snakes and birds. This is because tetrapods include all the organisms, living and extinct, that descended from the last common ancestor of amphibians, reptiles and mammals, even if they hav ... read more

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Study solves mystery of how first animals appeared on Earth
Research led by The Australian National University (ANU) has solved the mystery of how the first animals appeared on Earth, a pivotal moment for the planet without which humans would not exist. ... more
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Vegan raptor may be missing link between two major dino groups
Paleontologists have discovered a missing link between two large and diverse dinosaur groups. ... more
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First winged mammals from the Jurassic period discovered
Two 160 million-year-old mammal fossils discovered in China show that the forerunners of mammals in the Jurassic Period evolved to glide and live in trees. With long limbs, long hand and foot finger ... more
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Experiments cast doubt on how the Earth was formed
New geochemical research indicates that existing theories of the formation of the Earth may be mistaken. The results of experiments to show how zinc (Zn) relates to sulphur (S) under the conditions ... more
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ASU graduate student leads study estimating oxygen loss in ancient global ocean
A loss of oxygen in global ocean seawater 94 million years ago led to a mass extinction of marine life that lasted for roughly half a million years. Scientists have found several potential explanati ... more
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Ancient fish fossil reveals human-like jaw structure
Australian scientists have discovered a 400-million-year-old fish fossil featuring a human-like jaw structure. Paleontologists believe the ancient fish species' jaw bones represent an evolutionary antecedent of the human jaw. ... more
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Scientists unearth largest dinosaur species in Patagonia
Paleontologists have unearthed a new species of titanosaur in Agentina's Patagonia. Researchers believe it is the largest dinosaur species ever discovered. ... more
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What flowers looked like 100 million years ago
Flowering plants with are by far the most diverse group of plants on Earth. Flowering plants arose only about 140 million years ago, but since then have diversified spectacularly. No one knows exact ... more

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Well-preserved Canadian fossil reveals dinosaur armor like no other
One of the most well-preserved dinosaur fossils ever recovered has revealed a set of scales unlike any sported by armored dinosaurs. ... more
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Scientists rediscover lost burial site of famed long-necked sauropod
A team of Australian and British palaeontologists have rediscovered the lost burial site of Austrosaurus mckillop, a long-necked sauropod first found in 1932. ... more
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Dinosaur-era plant found growing in Wisconsin lakes
Scientists have found a surprise algae species growing in Wisconsin lakes, a species most thought was existent from the Americas. ... more
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Large-mouthed fish dominated the seas following mass extinction
A team of American and Swiss paleontologists have identified one of the earliest large predatory fish species from the Triassic period. Scientists suggest the large-mouthed fish dominated the seas in the aftermath of the Permian-Triassic extinction event. ... more
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The puzzle of evolutionary relationships among vertebrates
Using the largest and most informative molecular phylogenetic dataset ever analysed, evolutionary biologists were able to construct a new phylogenetic tree of jawed vertebrates. This new tree resolv ... more
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The oldest bad boy in the world
He's Australian, around half a centimetre long, fairly nondescript, 300 million years old, and he's currently causing astonishment among both entomologists and palaeontologists. The discovery of a b ... more
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Link between continental breakup, volcanic carbon emissions may influence evolution
New research suggests continental drift dictates volcanic carbon emissions. ... more
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Our ancestors were already warm-blooded before PT extinction event
For how long have warm-blooded animals existed? The time at which this character first appeared in the ancestors of mammals has long been debated. Now, dating analyses carried out on 90 fossils by a ... more

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Ancient plankton-like microfossils span 2 continents
Large, robust, lens-shaped microfossils from the approximately 3.4 billion-year-old Kromberg Formation of the Kaapvaal Craton in eastern South Africa are not only among the oldest elaborate microorg ... more
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Fossil site shows impact of early Jurassic's low oxygen oceans
Using a combination of fossils and chemical markers, scientists have tracked how a period of globally low ocean-oxygen turned an Early Jurassic marine ecosystem into a stressed community inhabited b ... more
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Planets Like Earth May Have Had Muddy Origins
Scientists have long held the belief that planets - including Earth - were built from rocky asteroids, but new research challenges that view. Published in Science Advances, a journal of the Am ... more
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T. rex was probably pretty slow, scientists claim
The relationship between speed and size among animals plots a bell curve on a graph. At a certain point, size becomes a liability, not an asset. ... more
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Sticking your neck out: How did plesiosaurs swim with such long necks?
When dinosaurs ruled the land, plesiosaurs ruled the oceans. Famous for their incredibly long necks - some of which were up to 7 metres long - plesiosaurs have remained an evolutionary mystery for h ... more
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Ancient animal thought to be first air breather on land loses claim to fame
Some good scientific sleuthing by an undergraduate at The University of Texas at Austin has helped rewrite one of the earliest chapters in the planet's evolutionary history. The research, led by the ... more
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Ancient molecules on fossil leaves reveal relationships among Jurassic-era plants
Thanks to a new molecular analysis technique, researchers have established relationships among 200-million-year-old plants for the first time. ... more
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Dinosaurs' loss was frogs' gain: The upside of a mass extinction
Most of the frogs alive today owe a big thank you to the asteroid or comet that delivered the coup de grace to the dinosaurs. A new study by Chinese and American biologists shows that if the c ... more
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