Articles tagged with Dinosaur Fossils
Researchers studied fossilized remains from Morocco and Niger to reconstruct the past's food chains, explaining how large predators coexisted. Calcium isotope analysis showed that carnivores shared resources by subtly hunting different prey types, such as herbivorous dinosaurs or fish.
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.
Researchers used synchrotron microtomography to reveal that Archaeopteryx had adaptations similar to those of modern flying birds, suggesting it could have flown actively. This discovery provides insight into the early evolution of dinosaurian flight and challenges previous assumptions about its lifestyle.
A nearly complete skeleton of a 250-65 million year old chick fossil provides insight into the bone development and evolutionary diversification of birds. The study suggests that early bird developmental strategies may have been more diverse than previously thought, with some species relying heavily on parental care.
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.
The geologically oldest fossil of the genus Archaeopteryx, dating back 150 million years, has been found in Northern Bavaria. The new specimen exhibits unique features that differentiate it from other known specimens, providing a reliable diagnosis for distinguishing Archaeopteryx from its closest relatives.
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 new genus and species of amphibious dinosaur, Halszkaraptor escuilliei, has been discovered in Mongolia. The fossil, found at Ukhaa Tolgod, exhibits a unique mix of features that suggests it was an aquatic predator, with flipper-like forelimbs and a long neck.
A reevaluation of the Haarlem specimen reveals it to be a predator anchiornithid rather than Archaeopteryx, shedding new light on the evolutionary transition from reptiles to birds. The fossil's taxonomic analysis suggests that modern birds are direct descendants of carnivorous dinosaurs.
A recent proposal to reorganize the traditional dinosaur family tree has sparked debate among experts. However, a new analysis by an international consortium found that the current model of an Ornithischia-Saurischia split remains supported, albeit with weak evidence for an alternative arrangement.
A nearly complete skeleton of a 76-million-year-old tyrannosaur was discovered in the Grand Staircase-Escalante National Monument. The fossil is believed to be an individual of the species Teratophoneus curriei, with a relatively short head and estimated length of 17-20 feet.
Researchers debunk previous claims of preserved dinosaur blood, showing degraded organics in fossils rather than actual cells. Experimental treatments demonstrate keratin degradation into foul-smelling fluid under simulated burial conditions.
A new University of Colorado Boulder study found that some large plant-eating dinosaurs in present-day Utah ate crustaceans on purpose, possibly for protein and calcium sources. The evidence comes from fossilized feces samples containing thick bits of fossilized shell, indicating the crustaceans were living in decaying wood.
Researchers have identified a new species of prehistoric crocodile, Deltasuchus motherali, from a fossil site in north central Texas. The species, which lived around 95 million years ago, is estimated to have grown up to 20 feet long and ate a wide variety of prey, including turtles and dinosaurs.
The largest ever recorded Ichthyosaurus was a pregnant adult female, estimated to be 3-3.5m long, and is an important discovery for the field of palaeontology. The specimen, found in a museum collection, has provided valuable insights into the size range of the species and the presence of embryos.
A new species of troodontid theropod has been identified and named Albertavenator curriei in honour of renowned Canadian palaeontologist Dr. Philip J. Currie. The discovery was made by ROM scientists who compared the dinosaur's skull bones to those of its close relative Troodon.
A new study uses synchrotron tomography to create high-quality 3D models of well-preserved food residues in 230 million-year-old fossil faeces. The technique reveals detailed information about the diet and lifestyle of ancient animals, providing insights into the ecosystem.
A new study published in PeerJ introduces modern techniques to understand the landmark site's history, revealing that dinosaur bones were introduced to the deposit after death. The research suggests a combination of drought periods and flood events led to the accumulation of Allosaurus fossils, with environmental factors contributing t...
A rare tooth discovery in Mississippi, USA, has revealed that horned dinosaurs, closely related to Triceratops, roamed freely across eastern North America during the Late Cretaceous period. The fossil, dated to around 68-66 million years ago, challenges previous assumptions about the separation of western and eastern continents.
A new species of giant bird-like dinosaur, Beibeilong, has been discovered in Henan, China. The fossilized remains include large eggs weighing up to five kilograms and an embryo found inside, revealing a previously unknown species of oviraptorosaur.
A study led by the University of Bath discovered a distinct dinosaur fauna in Africa at the end of the Cretaceous period. The newly discovered species, Chenanisaurus barbaricus, was found in phosphate deposits in Morocco and is considered one of the last dinosaurs on Earth before its extinction.
The discovery of Vouivria damparisensis, an early titanosauriform, provides important evidence on the evolution of brachiosaurid sauropods and their spread across Europe. The fossil reveals that Vouivria died at a young age, weighed around 15,000 kg, and was over 15 meters long.
Researchers at the University of Alberta successfully reunited a headless Corythosaurus skeleton with its skull, previously collected in 1920. This discovery highlights the growing field of study in paleontology and showcases new methods for matching specimens.
The newly-discovered Teleocrater rhadinus is a six-foot-long lizard-like carnivore that has unexpectedly crocodile-like features, causing scientists to reassess the earliest stages of dinosaur evolution. It shares more features with its distant crocodilian cousins than previously thought.
Researchers have found a carnivorous dinosaur relative with a crocodilian body plan, forcing them to re-evaluate their understanding of dinosaur evolution. The discovery sheds light on the complex history and traits of early ancestors.
A new species of ancient reptile, Teleocrater rhadinus, has been described, filling a critical gap in the fossil record. The carnivorous reptile was approximately 7-10 feet in length and walked on four crocodile-like legs, challenging preconceptions about early dinosaur relatives.
A paleontologist at the Canadian Museum of Nature argues that decades of research on sex differences among dinosaurs is based on flawed data. The scientist's report highlights issues with small sample sizes and statistical analysis methods, leading to invalid conclusions about sexual dimorphism in dinosaurs.
Scientists have discovered fossilized damselflies in Burmese amber that display ancient courtship behaviors, including elaborate leg structures and wing-like features. The findings suggest that damselfly mating rituals may have occurred as far back as the dinosaur era.
Researchers have confirmed that two extinct species of ichthyosaurs are the same, resolving a long-standing mystery. The study, published in Journal of Systematic Palaeontology, analyzed thousands of fossils and provided a superior understanding of the species.
A small crocodile from the Upper Jurassic Langenberg Quarry in Germany has been identified as a potential new species, Knoetschkesuchus langenbergensis. The fossilized remains exhibit unique features such as openings in the jaw bone and tooth morphology.
Researchers estimate dinosaur age by analyzing bone structures and repair procedures, with a similar process occurring in humans. The study's findings have implications for understanding the natural life span of dinosaurs.
A new species of lizard, Magnuviator ovimonsensis, discovered in Montana's Egg Mountain fossil site, reveals significant gaps in understanding lizard diversity during the Cretaceous Period. The nearly complete fossils show that this ancient offshoot of iguanian lizards lived in a semi-arid environment with dinosaurs and other creatures.
Researchers discovered that a dinosaur species, Limusaurus inextricabilis, lost its teeth in adolescence and did not grow another set as adults. The finding suggests a significant shift in diet from babies to adulthood, potentially explaining why birds have beaks but no teeth.
Researchers discovered that early dinosaurs had a far higher level of variation in growth patterns than birds and crocodiles. This variation may have allowed them to survive harsh environmental challenges, but its evolutionary origin remains unclear.
A well-preserved dinosaur fossil discovered in southern China provides valuable insights into the evolution of a family of feathered dinosaurs before the mass extinction event. The discovery, named Tongtianlong limosus, sheds light on how these creatures diversified and flourished just before their extinction.
Scientists analyzed insect feeding damage to thousands of leaf fossils from Patagonia, Argentina, and found evidence that ecosystems there recovered twice as fast as in the United States. The findings suggest that Patagonia's distance from the impact crater in Mexico may have contributed to the rapid recovery of insect diversity.
A genuine fossilized brain from a 133 million-year-old dinosaur has been discovered in Sussex, England, revealing remarkable preservation of the fine network of blood vessels. The brain structure and meningeal arrangement show striking similarity to modern birds and crocodilians, suggesting functional parallels.
A new study finds that bird-like dinosaurs were social animals, living and dying together in groups. The discovery of a rare bonebed in Mongolia highlights the increasing trend of gregariousness in dinosaurs and emphasizes the need to protect against fossil poaching.
Paleontologists discover dinosaur bones and trackways in Denali National Park, providing new insights into the region's ancient ecosystem. The finds are significant as they confirm the presence of dinosaur fossils in the area, supporting the hypothesis that a distinct polar fauna existed during the Late Cretaceous Period.
Researchers found the unique impression of skin scales from a large herbivore sauropod, possibly a titanosaurus, in sandstone rocks. The discovery is significant as it provides evidence of one of the last dinosaurs to live on Earth before their extinction.
The discovery of a 66-million-year-old bird fossil in Antarctica reveals the oldest known syrinx, a vocal organ that produces bird calls. The finding indicates that this organ may have originated late in the evolution of birds, suggesting that other dinosaurs were unable to produce similar sounds.
Scientists have discovered a new species of fossil crocodile that had complex, mammal-like teeth, which allowed it to crunch through the exoskeletons of insects. The tiny 'crocodile' was less than 2 feet in length and lived in the Kem Kem Beds in Morocco during the Cretaceous period.
A team of paleontologists has assigned a new genus to the largest predatory dinosaur ever found in Germany, dating back to the Middle Jurassic. The fossil, named Wiehenvenator albati, is estimated to be around 8-10 meters long and weighs over 2 tons.
A rare small-bodied pterosaur, a flying reptile from the Late Cretaceous period, has been discovered in British Columbia, Canada. The specimen is unusual as most pterosaurs from this time were much larger, but this new discovery provides crucial information about the diversity and success of Late Cretaceous pterosaurs.
A new theropod dinosaur discovered in Patagonia has forelimbs most similar to those of T. rex, indicating independent evolution of this unusual trait. The study suggests that small T. rex-like arms may have evolved multiple times, adding evidence to the evolutionary history of these dinosaurs.
A newly-discovered Patagonian allosaurid named Gualicho has short, two-fingered claws similar to those of T. rex, but its unique limbs evolved independently rather than arising from a common ancestor. The dinosaur's unusual features make it a 'mosaic dinosaur', with characteristics found in different kinds of theropods.
Researchers have uncovered a well-preserved fossil of a previously unknown bird species, Calciavis grandei, dating back to the Eocene epoch. The discovery sheds light on the evolutionary history of large flightless birds and provides new anatomical data for resolving contentious debates among paleontologists.
Researchers discovered a non-cancerous facial tumor in the fossilized jaw of Telmatosaurus transsylvanicus, a primitive duck-billed dinosaur, providing evidence that dinosaurs were prone to tumors. The discovery sheds new light on ancient diseases and tumours in extinct species.
New research suggests mammals evolved and diversified after the extinction of dinosaurs 66 million years ago, contradicting a long-held scientific theory. Fossil records support this finding, which was achieved by recalibrating DNA evolution rates using reliable fossil data.
Nine massive neck vertebrae discovered in Texas reveal new details about the giant sauropod Alamosaurus sanjuanensis, shedding light on its relationships and migration to southern North America. The fossils are permanently exhibited at Dallas' Perot Museum of Nature and Science.
A study of over 6,000 Antarctic marine fossils reveals a dramatic 65-70% reduction in species 66 million years ago, coinciding with the end of the Cretaceous Period and the extinction of dinosaurs. The research suggests that the mass extinction event was just as rapid and severe in polar regions as elsewhere on Earth.
A new species of horned dinosaur, Spiclypeus shipporum, has been identified with a unique 'spiked shield' on its head frill. The dinosaur lived around 76 million years ago and showed signs of arthritis and bone infection.
A new species of horned dinosaur, Spiclypeus shipporum, has been identified in Montana, featuring sideways-protruding horns and unique bony spikes. The fossil discovery provides insights into the Late Cretaceous period's dinosaur diversity and highlights the importance of dietary specializations.
Researchers found that muscle destruction must precede ligament destruction for vertebral retraction to occur. The study's findings have significant implications for understanding the death of dinosaurs like Sinosauropteryx.
Analysis of a new fossil suggests that giant dinosaurs like Rapetosaurus krausei were born with adult-like body proportions, allowing for early independence. This finding implies that parental care was less crucial for these species compared to others.
New research on Asilisaurus fossils reveals that early dinosaurs grew at a faster rate than previously thought and didn't follow the expected pattern of size being a predictor of maturity. The study found that muscle scars on fossil bones were more related to growth patterns than sex differences.
A fossilized femur bone has revealed the massive size of an abelisaur, potentially one of the largest ever found. The discovery helps researchers determine the maximum sizes these dinosaurs may have reached during their peak.
A new species of duck-billed dinosaur, Eotrachodon orientalis, has been identified from the Appalachian region, providing insight into its origins and dispersal. The discovery sheds light on how these dinosaurs spread across the world after the seaway lowered, opening a land corridor to western North America.