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News About The Primordial Earth
January 10, 2017
280 million-year-old fossil reveals origins of chimaeroid fishes
Chicago IL (SPX) Jan 06, 2017
High-definition CT scans of the fossilized skull of a 280 million-year-old fish reveal the origin of chimaeras, a group of cartilaginous fish related to sharks. Analysis of the brain case of Dwykaselachus oosthuizeni, a shark-like fossil from South Africa, shows telltale structures of the brain, major cranial nerves, nostrils and inner ear belonging to modern-day chimaeras. This discovery, published early online in Nature on Jan. 4, allows scientists to firmly anchor chimaeroids - the last major s ... read more

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Dino discovery may explain why birds have beaks
Scientists in China have identified the first known dinosaur species that grew teeth as juveniles then lost them as adults, a finding that may explain why birds have beaks, said a study Thursday. ... more
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New prehistoric bird species discovered
A team of geologists at the University of Rochester has discovered a new species of bird in the Canadian Arctic. At approximately 90 million years old, the bird fossils are among the oldest avian re ... more
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Mammals packed a powerful bite during age of dinosaurs
Move over, hyenas and saber-toothed cats; there's a mammal with an even stronger bite. A new study by Burke Museum and University of Washington paleontologists describes an early marsupial relative ... more
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Biologists unlock 51.7-million-year-old genetic secret to landmark Darwin theory
Scientists have identified the cluster of genes responsible for reproductive traits in the Primula flower, first noted as important by Charles Darwin more than 150 years ago. Darwin hypothesised tha ... more
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Tumor found in fossil of 255 million-year-old mammal predecessor
Researchers from the University of Washington have discovered the earliest evidence of a compound odontoma, a benign tumor made up of tiny tooth-like structures typically found growing in the gums. ... more
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Feathered tail of baby dinosaur found preserved in amber
Scientists have discovered the featured tail of a baby dinosaur preserved in amber. Though dinosaur feathers have been found in amber before, the discovery marks the first time bone, soft tissue and feathers have been found together. ... more
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Geoscientists find surprising variation in early dinosaurs
Look out your window, and you may see people of all ages and sizes roaming the street: a 6-foot-5-inch man walking beside a 4-foot-6-inch boy, for example, or a sprouting teen-ager who is much talle ... more
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Fish fossils reveal how tails evolved, Penn professor finds
Despite their obvious physical differences, elephants, lizards and trout all have something in common. They possess elongated, flexible structures at the rear of their bodies that we call tails. But ... more
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Nitrogen in ancient rocks a sign of early life
Nitrogen is one of the essential nutrients of life on Earth, with some organisms, such as the kinds of microbes found within the roots of legume plants, capable of converting nitrogen gas into molec ... more
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Diaphragm much older than expected
"Evolution has brought up some weird animals, such as the caseids." says Dr. Markus Lambertz, zoologist at the University of Bonn and the Museum Koenig. Caseids are "mammal-like" reptiles that lived ... more
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Oregon team says life in Earth's soils may be older than believed
Way before trees or lichens evolved, soils on Earth were alive, as revealed by a close examination of microfossils in the desert of northwestern Australia, reports a team of University of Oregon res ... more
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Mutation that triggered multicellular life altered protein flexibility
Just as a boat can be driven off course by a log in its path, a single, random mutation can send life in a new direction. That scenario, says University of Oregon biochemist Ken Prehoda, illustrates ... more
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Researchers explore gigantic volcanic eruptions that led to mass extinctions
A paper published in Nature Communications by Virginia Tech researchers confirms a major feature in the formation of large igneous provinces - massive worldwide volcanic eruptions that created incre ... more
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Dinosaur discovery casts light on final flurry of animals' evolution
A dinosaur fossil that almost went undiscovered is giving scientists valuable clues about a family of creatures that flourished just before the mass extinction. The bird-like species, found at ... more
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Dinosaurs' rise was 'more gradual,' new fossil evidence suggests
Researchers have discovered two small dinosaurs together with a lagerpetid, a group of animals that are recognized as precursors of dinosaurs. The discovery made in Brazil and reported in the Cell P ... more
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Patagonian fossil leaves reveal rapid recovery from dinosaur extinction event
Ancient feeding marks from hungry insects in South American leaf fossils are shedding new light on the mass extinction that wiped out the dinosaurs. Scientists analyzed insect feeding damage to thou ... more
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Space News from SpaceDaily.com
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Life took hold on land 300 million years earlier than thought
Life took hold on land at least as early as 3.2 billion years ago, suggests a study by scientists from Berlin, Potsdam and Jena (Germany). The team led by Sami Nabhan of the Freie Universitat Berlin ... more
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Toothed turtles stuck around longer than scientists thought
Scientists thought turtles with teeth disappeared around 190 million years ago, but new evidence suggests the toothed reptiles stuck it out for an extra 30 million years. ... more
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Did Early Earth Spin On Its Side
New theoretical modeling of the ancient history of the Earth and the Moon suggests that the giant collision that spawned our natural satellite may have left Earth spinning very fast, and with its sp ... more
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Symbiotic relationship crucial to reef survival dates to the Triassic
The mutually beneficial relationship between algae and modern corals - which provides algae with shelter, gives coral reefs their colors and supplies both organisms with nutrients - began more than ... more
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Chemical analysis demonstrates communal nesting in dinosaurs
The reproductive behaviors of birds are some of their most conspicuous and endearing qualities. From the colorful mating display of some birds, like peacocks, to the building of nests by nearly all ... more
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133 million-year-old dinosaur brain fossil found in England
Soft tissues such as hearts and muscles are very rarely preserved in the fossil record. For that reason, nearly all study of dinosaur soft tissue has to be reconstructed from fossil bones. However, ... more
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Giant extinct salmon fought with spike teeth during upriver spawning events
The ancient coastal waters of the Pacific, roughly 11 to 5 million years ago, were home to a bizarre and fascinating species of giant salmon with large spike-like teeth. This spike-toothed salmon re ... more
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A 'transitional fossil' debunked
Snakes are a very diverse group of present-day reptiles, with nearly 3,600 known species. They are readily recognized by their long bodies and lack of limbs. The origin of snakes from lizard-like pr ... more
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