Articles tagged with Trace Fossils
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Researchers discovered fossilized bee nests in a Dominican Republic cave, containing pollen and matching modern bee nest structures. The nests, dated to around 20,000 years ago, were likely built by solitary bee species using saliva-dirt mixtures.
Salterella, a tiny Cambrian creature, has been reclassified with cnidarians due to its unique shell structure and mineral composition. The research team suggests that Salterella's shell served a distinct purpose, possibly related to feeding or stability.
A study from the University of Lausanne reveals that larger animals and those with higher protein content tend to create reducing conditions more rapidly, which slow down decay and trigger fossilization. This explains why some ancient fossils are dominated by arthropods and others remain lost to time.
Researchers discovered that tropical riparian ecosystems recovered rapidly within two million years of the end-Permian mass extinction, indicating a faster-than-thought adaptation. This finding contradicts previous theories on ecosystem recovery and suggests that life on land may have been more resilient than previously believed.
Researchers have discovered a remarkably preserved fossil site in Massachusetts that provides a rare glimpse into terrestrial life from over 300 million years ago. The findings reveal a diverse ecosystem of early land-dwelling animals and plants, including some of the oldest known examples of their groups.
A discovery of 18 theropod tracks and four ornithopod tracks in the Wonthaggi Formation reveals that large carnivores roamed polar environments, feeding on prey like smaller dinosaurs, fish, and turtles. The finds confirm that a variety of dinosaurs lived and walked on the ground where their bones were found.
Researchers have discovered a series of bird footprints from the Early Cretaceous period in Victoria, Australia, indicating that diverse birds lived in southern polar environments during this time. The discovery provides new insights into the distribution and dispersal of early birds across landmasses.
A 312-million-year-old fossil found in the Carboniferous Rhode Island Formation provides evidence of how internal feeding, known as leaf mining, may have originated. The discovery sheds light on the evolution and behavior of holometabolous insects, including modern-day moths, beetles, flies, and wasps.
The discovery of rare fossils in 130-million-year-old rocks reveals the earliest evidence of deep-sea fishes, dating back to the Early Cretaceous period. The findings shed light on an obscure chapter in the history of life on Earth, forcing scientists to reconsider factors that triggered vertebrate colonization of the deep sea.
A team of researchers from South Africa has discovered exceptional trace fossils that provide insight into the locomotion of ancient giant amphibians. The fossils, found on a rock surface once part of a tidal flat or lagoon, suggest these animals propelled themselves through water with continuous side-to-side tail motions.
Researchers use advanced techniques to examine the middle Cambrian star-shaped fossil Brooksella, finding it lacks characteristics of sponges and glass sponges. Its internal structure and composition are similar to co-occurring silica concretions, leading to a reclassification as an unusual type of fossil.
A study published in Scientific Reports reveals fossilized tracks from the brown bear-sized Coryphodon, showing that large-bodied mammals regularly used marine environments after non-avian dinosaurs went extinct. The discovery is significant as it provides evidence of early mammal behavior and evolution.
A new trace fossil, Glossifungites gingrasi, has been named after University of Alberta paleontologist Murray Gingras. The discovery provides insight into ancient water salinity levels and helps narrow down the type of organism that created the burrow.
Researchers have discovered a 2-meter-long burrow attributed to ancient giant worms, providing insights into their behavior and habitat.
Fossil burrows from northeast Taiwan reveal that giant ambush-predator worms, possibly ancestors of the 'bobbit worm', colonized the seafloor around 20 million years ago. The L-shaped burrows, reconstructed by Ludvig Löwemark and colleagues, provide a rare glimpse into these creatures' behavior beneath the seafloor.
Scientists from Emory University discovered the first known fossil iguana nesting burrow in the Bahamas, dating back to 115,000 years ago. The finding provides new clues to the geologic and natural history of the islands, revealing that iguanas were present on San Salvador before European colonization.
A graduate student has identified a new marine wood-boring trace fossil, Apectoichnus lignummasticans, found in the University of Alberta's Drill Core Collection. The discovery provides evidence that the shallow sea covering Western Canada extended into Saskatchewan roughly 100 million years ago.
Research published in Science Advances by a University of Saskatchewan-led team reveals an explosion of ancient life on the ocean floor nearly 540 million years ago. The study found evidence of animals actively engineering their ecosystem, constructing diverse burrows that may have laid the foundation for greater diversity in marine life.
Researchers discovered large well-preserved footprints of a new species of crocodylomorph, which are ancestors of modern-day crocodiles. The tracks are more than twice as large as previously found batrachopodid tracks and indicate that the animals walked on two legs.
Fossils of Ikaria wariootia represent one of the oldest examples of bilateral symmetry and anterior-posterior differentiation. The discovery provides a critical link between Ediacaran and Cambrian animals.
A 550-million-year-old fossil found in China reveals that mobile and segmented animals evolved by the terminal Ediacaran Period, providing crucial evidence for the origin of segmentation. The discovery also helps scientists understand the producers of Ediacaran trace fossils.
Researchers found 121 new millipede trackways in Ordovician sedimentary rocks, contradicting the current understanding of animal life on land. The discovery sheds light on a key evolutionary event and highlights the importance of ancient rock records in understanding global change.
Researchers discovered fossil footprints for animal appendages in the Ediacaran Period in South China, revealing evidence of early animal life. The trackways indicate that bilaterian animals with paired appendages existed during this period, raising questions about their evolutionary origins.
Fossilized burrows from the late Ediacaran period show earlier origins of animal behavior, challenging previous theories. The discovery of large-sized, penetrative trace fossils indicates a radical transformation in marine ecosystems during this time.
A team of scientists discovered half-a-billion-year-old fossils in Brazil that reveal the existence of complex animals with muscle control approximately 550 million years ago. These findings challenge current fossil records and provide new insights into animal evolution.
International scientists have discovered a short-lived community of organisms that may hold clues to forces shaping our planet today. The community, which included microbial mats, trace fossils, bivalves, and echinoids, was found in a moderately deep-water setting near Shangsi in China's Sichuan Province.
Researchers discovered a new fossil organism, Plexus ricei, resembling a tapeworm or modern flatworm, with bilateral symmetry unlike any other Precambrian fossils. The discovery sheds light on the earliest origins of bilaterian animals and their evolutionary history.
A new international study reveals that humans have left an unprecedented legacy of technofossils, including built environments and consumer products, which will be preserved for millions of years. These technofossils are expected to become the defining characteristic of the Anthropocene epoch.
A new study has discovered well-preserved fossil insect ears from 50 million year-old crickets and katydids, shedding light on the evolution of insect hearing. The findings suggest that these insects evolved their supersensitive hearing long before bat predators came to be.
Paleontologists have found over 20 polar dinosaur tracks in Victoria, Australia, offering insights into the animals' behavior during a period of pronounced global warming. The tracks belong to three different sizes of small theropods and may have been made by three species.
Researchers have discovered prehistoric fish trails, made by the ancient species Notogoneus osculus, in Wyoming's former Fossil Lake. The study provides evidence that fish were able to survive on the lake bottom despite low oxygen levels.
A team of scientists from the University of Granada compared the Aznalcóllar spillage to the Cretaceous mass extinction event, finding similarities in sudden impact and high levels of toxic compounds. The study suggests that ecosystems can recover rapidly following such disasters, with evidence of life re-emerging within years.
Paleontologist Anthony Martin's discovery of dinosaur burrows in Victoria, Australia, suggests that burrowing behaviors were shared by different species across hemispheres and spanned millions of years. The findings indicate that small ornithopod dinosaurs may have dug into river banks to survive extreme environments.
A 390-million-year-old sea scorpion fossil found in Germany shows that ancient arthropods like spiders and insects were much larger than their modern-day equivalents. The fossil claw is over a foot-and-a-half long, indicating these creatures were among the largest extinct arthropods.
A UC Riverside study sheds light on the emergence of bilaterian animals, suggesting they did not appear until 555 million years ago. The research analyzed trace fossils from the Proterozoic-Cambrian transition, providing evidence for the gradual increase in diversity and complexity of these ancient structures.
Scientists confirm British Columbia was once nearly 2,000 miles south of its current location based on fossil evidence and magnetism. The discovery supports the theory of massive Earth movements along a gigantic faultline.