Articles tagged with Dinosaurs
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Researchers precisely dated Deccan Traps volcanic eruptions, finding four pulses that released toxic gases into the atmosphere. The findings suggest a possible link between volcanic activity and dinosaur extinction, but the exact cause remains uncertain.
A newly discovered tyrannosaur, Moros intrepidus, has narrowed a 70-million-year gap in the North American fossil record. The species, which lived about 96 million years ago, was small but exceptionally fast and had advanced sensory capabilities.
Paleontologists discovered a new species of marsupial, Unnuakomys hutchisoni, which lived during the Late Cretaceous Period about 69 million years ago. The tiny creature, weighing less than an ounce, adapted to survive four months of winter darkness in the Arctic Circle.
Researchers analyzed stable isotopes in Louisiana roadkill to understand ancient wetland ecosystems. They found that the method was effective but not always precise, as modern animals have diverse diets that don't segregate neatly into boxes.
A newly discovered species of marsupial, Unnuakomys hutchisoni, lived in Alaska's Arctic during the late Cretaceous Period, adding to the diversity of ancient life. The tiny animal, about thumb-sized, survived on insects and plants, and was found among a unique variety of dinosaurs and other animals.
A newly discovered middle Cretaceous titanosaur from Tanzania provides new insights into sauropod evolution and distribution. The species, named Mnyamawamtuka moyowamkia, fits near the origin of a clade that includes most Late Cretaceous titanosaur species, revealing an early stage in their diversification.
The discovery of Mnyamawamtuka moyowamkia provides new clues to the evolution of ecosystems on the African continent during the Cretaceous period. The dinosaur, a member of the titanosaur sauropod family, has a unique heart-shaped tail that sheds light on its evolutionary history.
A new copper-based OLED screen technology has been developed by USC scientists, offering a cheaper alternative to current iridium-based screens. The copper complex outperforms prior attempts and demonstrates efficient light emission across various colors, including blue.
A new oviraptorosaur species, Gobiraptor minutus, was discovered in the Nemegt Formation of Mongolia. The specimen features unusual thickened jaws and histological analyses indicate that it likely belonged to a young individual.
The ancient archosaur Smok wawelski exhibited bone-crushing behavior, consuming prey bones for their salt and marrow content. Researchers linked coprolites to the species through synchrotron microtomography and found crushed teeth and bite-marked bones.
Researchers analyzed dinosaur footprints in Morocco to understand how long-necked dinosaurs moved forward. The results showed that the animals could switch between orienting their forefeet forward or sideways as needed, with smaller individuals able to rotate them more easily.
A team of researchers analyzed Anchiornis feathers to understand the evolution of flight in dinosaurs and birds. They found that Anchiornis feathers contained both beta-keratins and alpha-keratins, a combination not seen in modern feathers.
A team of scientists has discovered a new species of fossilized shark teeth, Galagadon nordquistae, in the same rock as SUE the T. rex. The small shark lived in freshwater rivers and had distinctive shaped teeth similar to spaceships from the video game Galaga.
A newly discovered species of freshwater shark, Galagadon nordquistae, has been found with tiny 'spaceship-shaped' teeth, adding to the fossil record of this family in the Cretaceous. The discovery provides new insights into ancient aquatic ecosystems and sheds light on the diversity of sharks and rays during that period.
Fossils of well-armed and substantial flying reptiles from the UK's Jurassic period have been uncovered, revealing multiple pterosaur lineages, including a new species with a wingspan of two metres. The research sheds light on the evolution of flying reptiles and their role in understanding global natural history.
The study reveals over 450 millipede fossils, including those from 13 main orders, with the oldest known fossils found within the studied amber. The discovery sheds light on the evolution of millipedes and their diversification over time.
Researchers used 3D modeling to simulate heat exchange in dinosaurs and discovered they had an intricate cooling system in their snouts. The study suggests that the length of their noses played a crucial role in warming and cooling respired air, keeping their brains cool.
Researchers found that ankylosaurs had a built-in air conditioner in their snouts, which was just as efficient as those in living animals. The long, twisty noses allowed for effective heat exchange and cooling of the brain.
A team of scientists has found medullary bone in a Cretaceous bird fossil, providing the first occurrence of this tissue outside of modern birds. The discovery links birds and dinosaurs, challenging previous assumptions about their relationship.
The discovery of Lisowicia bojani, a massive four-legged creature from the Late Triassic period, suggests that mammalian ancestors could reach gigantic body sizes and challenge established beliefs about dicynodonts.
Researchers at Uppsala University discovered a new species of gigantic dicynodont, Lisowicia bojani, in Poland. The species is estimated to be around 4.5 meters long, 2.6 meters high, and weigh 9 tons, making it the largest non-dinosaurian terrestrial tetrapod from the Triassic period.
A recent study published in PLOS ONE provides the most comprehensive analysis of a Hadrosaur bone bed in Europe, shedding light on the lives of these ancient herbivores. The research reveals that young individuals were more abundant than adults, suggesting a natural population dynamic.
A study on Changchunsaurus parvus reveals unique features in its teeth, including wavy enamel and a method of tooth replacement that allowed for continuous shearing surface formation. These findings suggest early adaptations for herbivory in this small herbivorous dinosaur.
Researchers at Yale University discovered that birds inherited their egg color from non-avian dinosaur ancestors that laid eggs in fully or partially open nests. The findings suggest that egg colors evolved to camouflage eggs from predators and parasites.
A new species of Archaeopteryx, Archaeopteryx albersdoerferi, has been discovered with advanced flight characteristics, supporting its status as a transitional fossil between birds and dinosaurs. The study used 3D X-ray analyses to reveal skeletal adaptations that enabled the ancient bird to fly more efficiently.
A remarkable new species of bony fish has been described from 150-million-year-old limestone deposits in South Germany, featuring piranha-like teeth. The fossilized specimen's jaws revealed long, pointed teeth and triangular serrated cutting edges, suggesting a mouth equipped to slice flesh or fins.
University of Cincinnati biology professor Takuya Konishi proposes that mosasaurs hunted like killer whales by ramming their prey with their snouts. The young Tylosaurus mosasaur found in Kansas had a similar facial structure to orcas, with a protruding snout and robust cranial vault.
A new anatomical description of the car-sized sauropod relative Sarahsaurus aurifontanalis has shed light on its evolutionary changes and potential clues to why some dinosaurs got so big. The fossils, discovered in Arizona, provide a rare glimpse into the anatomy of these massive creatures.
Ledumahadi mafube, a 12-tonne giant plant-eater, was the largest land animal alive when it lived nearly 200 million years ago. The new species' fossil reveals insights into its evolution and geographic history.
Researchers describe new species Ledumahadi mafube, a giant relative of Brontosaurus that walked on all fours. The discovery sheds light on the evolution of sauropods and reveals that massive body sizes were possible in early four-legged dinosaurs.
Floral scents have been attracting pollinating insects and other animals since the mid-Cretaceous Period, providing olfactory excitement to these ancient creatures. The study found that modern and ancient flowers of the same lineages produced similar essences, suggesting a long history of floral fragrance production.
A team of paleontologists discovered dozens of hadrosaur and therizinosaur tracks in Denali National Park's lower Cantwell Formation, providing evidence that Alaska served as a gateway for dinosaur migration between Asia and North America during the Late Cretaceous period. The co-occurrence of these dinosaurs in Alaska challenges previ...
A study found that the end-Cretaceous mass extinction event led to the shift in dominance from lamniform to carcharhiniform sharks. Carcharhiniforms, including Tiger and Hammerhead sharks, proliferated in the post-extinction world.
An international team of researchers has confirmed that Brachiosaurus dinosaurs inhabited the US region, including the largest dinosaur foot ever found. The discovery was made in Wyoming and measured over 4 meters high at its hip.
A new study reveals the largest dinosaur foot ever found, measuring nearly 1 meter wide, and confirms that brachiosaurs inhabited a huge area in North America. The discovery also sheds light on the range of sauropod dinosaurs during that time.
The newly discovered Akainacephalus species from Utah is found to be closely related to Asian ankylosaurids, contradicting the prevailing view of its North American origins. Its unique armor arrangement suggests a distinct provincialism in Laramidia during the Late Campanian stage.
Researchers at the University of Leeds grew herbivore dinosaurs' diet by mimicking atmospheric conditions similar to those found roughly 150 million years ago. The study showed that many plant species had significantly higher energy and nutrient levels under high CO2 concentrations.
A new study challenges the classic image of dinosaurs, revealing that they couldn't stick out their tongues. Researchers compared hyoid bones of modern birds and crocodiles with those of extinct dinosaur relatives, finding that most dinosaurs had short, simple tongue bones anchored to the floor of their mouth.
A team from University of Bristol identified the Carnian event through breakpoint analysis, a statistical method that compared species counts across Triassic samples. The event marked a sudden shift in ecosystems from dinosaur domination to modern groups like turtles and mammals.
The discovery of Brasilestes stardusti, the oldest known mammal in Brazil, is a significant find that sheds light on the evolution of mammals during the Mesozoic Era. The species was named after British rock star David Bowie and is believed to be a placental mammal.
Scientists analyzed 107 mammal genomes to find genes that allowed early ancestors to digest insects. They discovered nearly all mammals have remnants of these genes, suggesting a shared insectivorous diet with our distant ancestors.
A Rutgers-led study found that the 405,000-year cycle of gravitational tugs from Jupiter and Venus has shaped our planet's climate for over 215 million years. This consistent pattern allows scientists to precisely date geological events like the spread of dinosaurs.
Researchers have found a complete skull of the iconic toothed bird Ichthyornis dispar, providing new insights into its transitional features. The fossil reveals a modern-looking brain and a remarkably dinosaurian jaw muscle configuration.
A new study reveals that the origins of dinosaurs were triggered by a crisis mass extinction event 232 million years ago. The Carnian Pluvial Episode led to repeated extinctions and a surge in global warming, acid rain, and climate perturbations.
Materials experts at UCI have created a revolutionary new material that can change its reflectivity in under a second, mimicking the properties of squid skin. The technology has potential applications in military camouflage, space insulation, and more.
A decade of fossil collecting in Tanzania and Zambia has provided new perspectives on the Triassic period, revealing regional patterns and similarities across different geographic areas. The findings highlight the presence of early dinosaurs, such as Teleocrater, and other animals that co-existed with them.
A study shows preverbal infants can make logical deductions by conducting process of elimination, as seen in toddlers. Infants stare longer at unexpected outcomes and their pupils dilate when watching movies requiring rational thinking.
A new study validates 'phantom' fossil footprints collected in the 1950s showing dicynodonts coexisting with dinosaurs. The discovery sheds light on ancient ecosystems and highlights the importance of trace fossils like footprints.
Researchers discovered six new species of pterosaurs with remarkable diversity in size and shape, contradicting previous studies that suggested a decline before the mass extinction. The fossils date to just over 66 million years ago, revealing that these flying reptiles dominated the skies until their extinction.
The discovery of Mansourasaurus shahinae, a long-necked plant-eater with bony plates, fills gaps in Africa's Late Cretaceous fossil record. The species helps answer questions about Africa's connections to Europe and the degree to which its animals evolved independently.
A newly discovered dinosaur fossil from China contains evidence that a tiny bird-like dinosaur may have used its flashy neck feathers and a bony crest on its snout to attract mates. The discovery provides the earliest evidence of iridescence in dinosaurs, which is similar to that found in hummingbird species today.
Researchers have made it possible to 3-D print and study a 200-million-year-old South African dinosaur skull, the Massospondylus. The digital reconstruction was created using CT scans, allowing for detailed analysis of its inner ear and brain structure.
A new species of turkey-sized herbivorous dinosaur, Diluvicursor pickeringi, has been discovered in 113 million year old rocks in southeastern Australia. The fossilized tail and foot bones provide significant information about the diversity of small, bipedal ornithopods that roamed the Australian-Antarctic rift valley.
A team of researchers from the University of Bonn has discovered a unique type of bony tissue called pneumosteum, which is found in birds and some dinosaurs. This discovery provides new insights into the evolution of their respiratory systems and opens up possibilities for studying extinct species.
A University of Bristol-led study has revealed new details about the ancient dinosaur Anchiornis, including its fluffy and primitive feathers. The findings suggest that the animal's feathers would have increased drag when gliding and affected its ability to control temperature and repel water.
Scientists from CNRS and ENS de Lyon discover the world's longest sauropod dinosaur trackway, spanning over 155 meters, in the French village of Plagne. The trackway is estimated to be 150 million years old and belonged to a dinosaur at least 35m long and weighing 35t.
A team of scientists has discovered a remarkable exception to existing theories on supernovae, with a star that exploded multiple times over 50 years. The star, iPTF14hls, was initially observed as an ordinary supernova but grew brighter and dimmer at least five times.
Fossils of the oldest mammals related to mankind have been discovered on the Jurassic Coast of Dorset, dating back 145 million years. The two teeth belong to small, rat-like creatures that lived during the time of the dinosaurs and are the earliest undisputed fossils of mammals belonging to the line that led to human beings.
A new study reveals that mammals began living in the daytime approximately 66 million years ago, shortly after the dinosaurs' disappearance. The ancestors of simian primates were among the first to abandon nocturnal activity, with their visual adaptations comparable to diurnal reptiles and birds.
Researchers reconstructed Sinosauropteryx's likely colour patterning, showing it used bandit mask-like stripes and countershading to avoid detection. This helped the small dinosaur evade larger meat-eating dinosaurs and sneak up on prey more easily.