A new study using museum collections reveals that ammonites were diverse and thriving across the globe just before their extinction in the Late Cretaceous. The research found that the balance of speciation and extinction rates varied by region, contradicting previous theories.
Researchers have identified a new genus of fossil goby, †Simpsonigobius, measuring up to 34 mm, found in 18-million-year-old rocks in Turkey. The discovery provides critical insights into the evolutionary history of these fish and highlights the importance of analyzing fossil records using modern methods.
The ND3 site features typical microblade technology with over 1,100 lithic artifacts unearthed. Microblades were the primary target product, and their production process was reconstructed through detailed analysis of lithic technologies.
A team of researchers led by Virginia Tech's Shuhai Xiao discovered a 550 million-year-old sea sponge that challenges previous theories about its evolution. The fossil, found in China, suggests that early sponges may have had soft-bodied skeletons and only later developed mineralized structures.
Researchers have identified the remains of a local prehistoric marine reptile as belonging to a thalattosaur, a large sea-lizard that behaved like an otter. The discovery challenges previous assumptions about its identity and provides new insights into the animal's diet and behavior.
A rare Florida fossil has helped scientists reconcile the long-standing debate over North America's sole porcupine species. The porcupine's unique adaptations, such as its insulating fur and modified jaw structure, demonstrate the evolutionary pressures it faced in transitioning from tropical forests to colder environments.
Researchers sequenced ancient genomes to understand the genetic composition of western plateau populations over 3,500 years. They found complex interactions between southern and western plateau populations, with Central Asian components introduced around 2,300 years ago.
A study led by Spanish researchers reveals Bonelli's eagles colonized the Mediterranean 50,000 years ago due to early human settlement, displacing golden eagles as the dominant species. Human activities now threaten the eagle's survival.
Scientists discovered a bizarre arachnid with up-armored legs in the Mazon Creek locality in Illinois, dating back to the Carboniferous period. The fossil, named Douglassarachne acanthopoda, has a unique body plan that defies categorization into known arachnid orders.
New research reveals human activities alter marine organism preservation, improving or impairing the fossil record. Human actions can prevent useful information about ongoing changes and enhance the quality of the fossil record.
A new study reveals the presence of previously unknown species at Kromdraai archaeological site in South Africa, providing unprecedented insights into human evolution. The discovery highlights the complexity of ancient ecosystems and their influence on hominin development.
Researchers describe two Jurassic mammaliaforms from China, revealing dental diversification and the emergence of middle ear ossicles. The findings support a classic example of vertebrate evolution and provide new insights into early mammalian phylogeny.
The discovery of two newly described fossils from the Jurassic period has provided fresh insights into the early evolution of mammals. The fossils, which include well-preserved skeletal remains of shuotheriids, have allowed scientists to solve a longstanding problem in understanding mammalian tooth shape.
A researcher at Ohio State University resolves historical inconsistencies in the name of a popular fossil, confirming that Thomas Jefferson named the genus correctly. The correct name helps ensure accurate documentation of the history of life on Earth and its implications for science.
A new species of freshwater dolphin, Pebanista yacuruna, was found in the Peruvian Amazon region and is dated to be 16 million years old. The discovery sheds light on the evolutionary history of freshwater dolphins, revealing a deep connection with South Asian river dolphins.
The Tibetan Plateau's pre-Cryogenian sedimentation records reveal the formation and evolution of early supercontinents. The study found three basement types: Tarim-, Yangtze-, and Lhasa-type, with distinct characteristics.
Researchers found a rich find of evidence, including 75 fossil tracks and tree stumps, indicating a riverine or delta setting for dinosaurs. The discovery suggests the region received approximately 70 inches of precipitation annually during the mid-Cretaceous Period.
A new study suggests that East Asian hominins possessed advanced knapping abilities equivalent to Mode 2 technological features as early as 1.1 million years ago. The research team discovered organized flaking techniques and standardized operational processes, indicating complex mental templates among the toolmakers.
The study of ancient genomes has shed light on the evolution of modern humans, revealing genetic changes that distinguish us from Neanderthals and Denisovans. These findings suggest that population-level advantages, such as increased connectivity and access to resources, played a significant role in shaping human migration patterns.
A new discovery in Panama has uncovered the oldest known leaf-nosed bat fossils, preserved 20-million years ago. The findings suggest that these mammals may have originated in North America, contradicting previous theories that they came from South America.
Two prehistoric shark species, previously named the same, were given new names based on their discovery location. A wealth of fossil fishes discovered during the renaming process had been stored at an Ohio State museum for years but were largely forgotten.
The study reveals that a limited number of exceptional fossil preservation sites can significantly impact the global availability of phylogenetic data. This distortion can affect our understanding of bird, scaly reptile, and dinosaur evolution.
The Cabrières Biota, a new fossil site in southern France, has revealed unprecedented information on polar ecosystems during the Ordovician period. The discovery of over 400 fossils provides insights into the composition of southernmost ecosystems and serves as a refuge for species that escaped high temperatures.
A new study of a 7–8-million-year-old extinct fossil ape from China, Lufengpithecus, offers new insights into the evolution of human bipedalism. The researchers found that early apes shared a locomotor repertoire ancestral to human bipedalism, and their analysis suggests a three-step evolution of human bipedalism.
A recent study on the fossil ape Lufengpithecus offers insights into the origins of human bipedalism. By analyzing the inner ear region, researchers discovered a three-step evolution process that led to human walking, with early apes using tree-like locomotion and later developing a combination of climbing and terrestrial quadrupedalism.
The Shiyu discovery in Shanxi Province reveals an advanced material culture dating back 45,000 years, with evidence of blade technology and long-distance obsidian transfer. This finds sheds light on the ancient migration of Homo sapiens into East Asia around 45,000 years ago.
Researchers use computational fluid dynamics to examine the feeding mode of extinct jawless heterostracans, dismissing the filter feeding hypothesis. The study reveals that forward-facing denticles on oral plates may have prevented oversized food particles from lodging between plates.
Researchers have identified a 3D fragment of fossilized skin that is at least 21 million years older than previously described skin fossils. The ancient skin shares features with reptiles alive today, highlighting the importance of epidermis for survival in terrestrial environments.
Researchers discovered diverse microfossils of ancient eukaryotes, including 10 previously undescribed species, that exhibit complex characteristics like cell walls made of bound fibers and tiny trapdoors. These findings suggest that early eukaryotes were already diverse and advanced, with some evidence pointing to an aerobic metabolism.
A study published in Ecology Letters reveals that human population growth and land-use changes led to significant dietary shifts in large herbivores in eastern China. The researchers found that these herbivores adapted by altering their diets, with increased interspecific differences and expanded intraspecific dietary ranges.
Researchers have discovered lipid fossils in ancient rocks, providing clues about the evolution of life. The findings suggest that a shift in animal feeding strategies occurred around 1.6 billion years ago, with some species abandoning phytosterol production as they obtained this nutrient from algae.
The discovery of two male mosquitoes from the Early Cretaceous period reveals that males likely fed on blood, contradicting previous assumptions. The findings provide new insights into the evolution of hematophagy and challenge current understanding of mosquito behavior.
A new fossil assemblage in Brazil has added to the complexity of classifying silesaurid phylogeny, a family of dinosauriforms that lived during the Triassic period. The study suggests that these animals were part of the evolutionary history of dinosaurs, but their classification remains uncertain due to ambiguous anatomy.
The discovery of a new early Jurassic dinosaur species, Qianlong shouhu, reveals that the first dinosaur egg was likely leathery and relatively small. The study also found that the transition in egg morphology occurred early in theropod dinosaur evolution.
Researchers discovered a 'neglected' dinosaur, Thescelosaurus neglectus, had exceptional smell and balance abilities. Its brain size was relatively small, but its olfactory bulbs were large, similar to those of living alligators.
Paleontologists uncover the story of Ekgmowechashala, a mysterious primate that defied extinction, through fossil teeth and jaws found in Nebraska and China. The discovery resolves the debate over its classification and origin, revealing it was an immigrant species that evolved in Asia and migrated to North America via Beringia.
Researchers discovered two extremely rare fossil lampreys from the Jurassic of northern China, shedding new light on lamprey evolution. The study revealed that these ancient creatures had a feeding apparatus strikingly similar to that of living pouched lampreys, which are flesh-eating species.
A new study reconstructs the well-preserved skull of Pierolapithecus catalaunicus, a key fossil in understanding great ape and human evolution. The researchers found that the species shares similarities with both fossilized and living great apes, but also has distinct facial features not found in other Middle Miocene apes.
A team of paleontologists has discovered the oldest record of sea turtle DNA in a fossil shell from Panama's Caribbean coast. The findings, published in Journal of Vertebrate Paleontology, date back approximately 6 million years to the upper Miocene Epoch.
A new study reveals that long-lived lakes played a crucial role in the evolutionary history of freshwater snails. These ancient ecosystems allowed species to 'experiment' over millions of years, resulting in unique morphological changes and special ecological adaptations.
Scientists discovered a new species of small plant-eating dinosaur, Vectidromeus insularis, on the Isle of Wight, which is the second member of the hypsilophodont family found on the island. The discovery suggests that Europe had its own distinct family of small herbivorous dinosaurs, unlike those found in Asia and North America.
A 265-million-year-old fossil discovery in Brazil yields the oldest and largest known predator in South America, predating the rise of dinosaurs. The exquisitely preserved Pampaphoneus biccai had a skull over 40cm long and sharp canine teeth adapted for capturing prey.
A team of researchers used a novel methodology to investigate the impact of large mammal extinctions on their environments. They found that earlier biodiversity losses did not necessarily hinder mammal community functioning, but later losses were linked to changes in climate and vegetation patterns.
A new species, Fujianvenator prodigiosus, exhibits a bizarre assembly of morphologies shared with other avialans, troodontids, and dromaeosaurids. The discovery provides insight into the early evolution of birds and their ecological adaptations.
Researchers have discovered fossils of ravens living alongside early humans in Beijing, dating back over 100,000 years. The findings suggest that ravens were resilient to climate change and provide valuable insights into the impact of environmental changes on bird populations.
A 2020 excavation at Auckland's Mangere Wastewater Treatment Plant yielded an unprecedented 266 fossil species, including the world's oldest known flax snails and extinct sawshark spine. The discovery provides valuable insights into New Zealand's geological history.
A new species of extinct whale, Tutcetus rayanensis, has been discovered in Egypt's ancient sea, providing unprecedented insights into the life history and phylogeny of early whales. The discovery sheds light on the transition from land to sea and the evolution of whales.
The fossil discovery provides the earliest known evidence of birds consuming leafy greens from flowering plants. Analysis of microscopic residues in a 120-million-year-old bird skeleton reveals that Jeholornis was an herbivore, not a predator.
A new species of armored reptile, Mambachiton, shows that the precursor to dinosaurs and pterosaurs had bony plates on its backbone, indicating that armor was ancestrally present in bird-line archosaurs. The loss and re-evolution of armor is an important aspect of dinosaur evolution.
A new study uses marine fossils to infer the health and stability of coastal ecosystems, revealing consistent patterns in population declines and species extinctions. The findings provide a reliable benchmark for conservation efforts and offer insights into the impacts of human activities on marine biodiversity.
Researchers reveal that Anomalocaris canadensis was likely a speedy swimmer targeting soft prey in the open water, rather than pursuing hard-shelled creatures on the ocean floor. The study's findings contradict previous assumptions about the predator's feeding behavior and highlight the complexity of Cambrian food webs.
A 50-million-year-old katydid fossil found in Colorado reveals exceptionally preserved internal organs, including a testicle and digestive tract. The fossil belongs to the genus Arethaea and provides new insights into the evolution of this group of insects.
A study by University of Vienna researchers clarifies cycads' origin and geographic distribution, revealing a dynamic evolutionary history with key lineages becoming extinct or spreading. The findings provide valuable insights into biodiversity research and have implications for conservation efforts.
Researchers discovered that the early avian bauplan was shaped by natural selection driven by powered flight, with forelimb evolution constrained to basic 'blueprint' needed for flight. The study found avialan-like limb proportions established earlier in forelimbs than hindlimbs in theropod history.
A new spinosaurid dinosaur species, Protathlitis cinctorrensis, has been identified in Spain, revealing insights into the evolutionary history of medium-to-large bodied spinosaurids. The discovery estimates the specimen to be around 10-11 meters long and suggests that spinosaurids may have originated in Europe before migrating to Afric...
A new Ordovician eurypterid, Archopterus anjiensis, has been found in the Wenchang Formation of Anji County, Zhejiang Province. The discovery is significant for understanding early evolution of eurypterids in Gondwana.
Researchers discovered that Obamus coronatus, a half-inch long Ediacaran animal, preferred to live on specific parts of the sea floor in the company of other Obamus. This finding shows that even without modern descendants, ancient animals could exhibit sophisticated behavior and habitat selection.
A new study challenges previous estimates of Dunkleosteus' size, finding that mouth dimensions of extant sharks do not reliably estimate body size. The research suggests arthrodires have larger mouths relative to their body length than sharks, leading to biologically illogical body shapes and likely suffocation due to small gills.
A team of paleontologists used the history of steam engines to test competitive exclusion theory, finding limited evidence supporting its role in extinction. The researchers analyzed data on tractive effort, revealing that newer engines generated more power, making steam locomotives less efficient and eventually obsolete.
A new species of ancient beaver, Anchitheriomys buceei, has been discovered in Texas and named after Buc-ee's. The beaver lived about 15 million years ago and was about 30% larger than modern beavers.