Fossil Fuels
Amber
Biological Evolution
Hominidae
Dinosaurs
Geology
Geological Phenomena
Dentition
Reptiles
Skeleton
Genetic Speciation
Geography
Cetacea
Anatomy, Comparative
Evolution, Molecular
Angiosperms
Ecosystem
Biodiversity
Mammals
Evolution, Planetary
Neanderthals
Geologic Sediments
Animal Shells
Radiometric Dating
Time
Arthropods
Classification
Gymnosperms
Vertebrates
Menispermaceae
Sirenia
Echinodermata
Phylogeography
Foraminifera
Climate
Feathers
Atmosphere
Biofuels
Greenhouse Effect
Marine Biology
Energy-Generating Resources
Natural History
Crustacea
Species Specificity
Mollusca
Bone and Bones
Gorilla gorilla
Bayes Theorem
Dominican Republic
Fishes
Insects
Platyrrhini
DNA, Mitochondrial
Acari
Ecology
Xenarthra
Finger Phalanges
Spheniscidae
Likelihood Functions
Gas, Natural
Strepsirhini
Mandible
Ephedra
Bones of Upper Extremity
Oceans and Seas
Pan troglodytes
Palaeognathae
Ferns
Embryophyta
Annonaceae
Dugong
Plants
Elephants
Phthiraptera
Catarrhini
Lemur
Thiotrichaceae
Tarsiidae
Recycling
Ginkgo biloba
Whales
Calcium Carbonate
Pongo pygmaeus
Myanmar
Pan paniscus
Tooth Attrition
Cytochromes b
Sharks
Synchrotrons
Pinaceae
Sequence Analysis, DNA
Carnivora
Adaptation, Biological
Cebidae
Lycopodiaceae
Annelida
Actinidiaceae
Eukaryota
Trees
Metacarpal Bones
Petroleum
Dental Enamel
Locomotion
Molar
Biogenesis
Environment
Microscopy, Electron, Scanning
Stramenopiles
Marsupialia
Bahamas
Plant Leaves
Models, Genetic
Carbon Cycle
Calibration
Antarctic Regions
Madagascar
Cycadophyta
Fuel Oils
Bermuda
Gastropoda
Tarsal Bones
Polyplacophora
Cnidaria
Predatory Behavior
Nymphaeaceae
Models, Biological
Mongolia
Biomass
Urodela
Extraction and Processing Industry
Oxygen Isotopes
Volcanic Eruptions
Ursidae
Population Dynamics
Mediterranean Islands
Felidae
Molecular Sequence Data
Climate Change
Polygonaceae
Bivalvia
Eucalyptus
Carbon
Wood
Siberia
Global Warming
Africa, Eastern
Indonesia
Seed Dispersal
Feeding Behavior
Cranial Sinuses
Cercopithecidae
Carbon Dioxide
Evolutionary and preservational constraints on origins of biologic groups: divergence times of eutherian mammals. (1/2344)
Some molecular clock estimates of divergence times of taxonomic groups undergoing evolutionary radiation are much older than the groups' first observed fossil record. Mathematical models of branching evolution are used to estimate the maximal rate of fossil preservation consistent with a postulated missing history, given the sum of species durations implied by early origins under a range of species origination and extinction rates. The plausibility of postulated divergence times depends on origination, extinction, and preservation rates estimated from the fossil record. For eutherian mammals, this approach suggests that it is unlikely that many modern orders arose much earlier than their oldest fossil records. (+info)X chromosome evidence for ancient human histories. (2/2344)
Diverse African and non-African samples of the X-linked PDHA1 (pyruvate dehydrogenase E1 alpha subunit) locus revealed a fixed DNA sequence difference between the two sample groups. The age of onset of population subdivision appears to be about 200 thousand years ago. This predates the earliest modern human fossils, suggesting the transformation to modern humans occurred in a subdivided population. The base of the PDHA1 gene tree is relatively ancient, with an estimated age of 1.86 million years, a late Pliocene time associated with early species of Homo. PDHA1 revealed very low variation among non-Africans, but in other respects the data are consistent with reports from other X-linked and autosomal haplotype data sets. Like these other genes, but in conflict with microsatellite and mitochondrial data, PDHA1 does not show evidence of human population expansion. (+info)Predicting protein decomposition: the case of aspartic-acid racemization kinetics. (3/2344)
The increase in proportion of the non-biological (D-) isomer of aspartic acid (Asp) relative to the L-isomer has been widely used in archaeology and geochemistry as a tool for dating. the method has proved controversial, particularly when used for bones. The non-linear kinetics of Asp racemization have prompted a number of suggestions as to the underlying mechanism(s) and have led to the use of mathematical transformations which linearize the increase in D-Asp with respect to time. Using one example, a suggestion that the initial rapid phase of Asp racemization is due to a contribution from asparagine (Asn), we demonstrate how a simple model of the degradation and racemization of Asn can be used to predict the observed kinetics. A more complex model of peptide bound Asx (Asn + Asp) racemization, which occurs via the formation of a cyclic succinimide (Asu), can be used to correctly predict Asx racemization kinetics in proteins at high temperatures (95-140 degrees C). The model fails to predict racemization kinetics in dentine collagen at 37 degrees C. The reason for this is that Asu formation is highly conformation dependent and is predicted to occur extremely slowly in triple helical collagen. As conformation strongly influences the rate of Asu formation and hence Asx racemization, the use of extrapolation from high temperatures to estimate racemization kinetics of Asx in proteins below their denaturation temperature is called into question. In the case of archaeological bone, we argue that the D:L ratio of Asx reflects the proportion of non-helical to helical collagen, overlain by the effects of leaching of more soluble (and conformationally unconstrained) peptides. Thus, racemization kinetics in bone are potentially unpredictable, and the proposed use of Asx racemization to estimate the extent of DNA depurination in archaeological bones is challenged. (+info)Preservation of key biomolecules in the fossil record: current knowledge and future challenges. (4/2344)
We have developed a model based on the analyses of modern and Pleistocene eggshells and mammalian bones which can be used to understand the preservation of amino acids and other important biomolecules such as DNA in fossil specimens. The model is based on the following series of diagenetic reactions and processes involving amino acids: the hydrolysis of proteins and the subsequent loss of hydrolysis products from the fossil matrix with increasing geologic age; the racemization of amino acids which produces totally racemized amino acids in 10(5)-10(6) years in most environments on the Earth; the introduction of contaminants into the fossil that lowers the enantiomeric (D:L) ratios produced via racemization; and the condensation reactions between amino acids, as well as other compounds with primary amino groups, and sugars which yield humic acid-like polymers. This model was used to evaluate whether useful amino acid and DNA sequence information is preserved in a variety of human, amber-entombed insect and dinosaur specimens. Most skeletal remains of evolutionary interest with respect to the origin of modern humans are unlikely to preserve useful biomolecular information although those from high latitude sites may be an exception. Amber-entombed insects contain well-preserved unracemized amino acids, apparently because of the anhydrous nature of the amber matrix, and thus may contain DNA fragments which have retained meaningful genetic information. Dinosaur specimens contain mainly exogenous amino acids, although traces of endogenous amino acids may be present in some cases. Future ancient biomolecule research which takes advantage of new methologies involving, for example, humic acid cleaving reagents and microchip-based DNA-protein detection and sequencing, along with investigations of very slow biomolecule diagenetic reactions such as the racemization of isoleucine at the beta-carbon, will lead to further enhancements of our understanding of biomolecule preservation in the fossil record. (+info)Early medieval cattle remains from a Scandinavian settlement in Dublin: genetic analysis and comparison with extant breeds. (5/2344)
A panel of cattle bones excavated from the 1000-year-old Viking Fishamble Street site in Dublin was assessed for the presence of surviving mitochondrial DNA (mtDNA). Eleven of these bones gave amplifiable mtDNA and a portion of the hypervariable control region was determined for each specimen. A comparative analysis was performed with control region sequences from five extant Nordic and Irish cattle breeds. The medieval population displayed similar levels of mtDNA diversity to modern European breeds. However, a number of novel mtDNA haplotypes were also detected in these bone samples. In addition, the presence of a putative ancestral sequence at high frequency in the medieval population supports an early post-domestication expansion of cattle in Europe. (+info)New evidence from Le Moustier 1: computer-assisted reconstruction and morphometry of the skull. (6/2344)
In this study, we present a new computerized reconstruction of the Le Moustier 1 Neanderthal skull and discuss its significance for Neanderthal growth and variability. Because of the precarious state of preservation of the original material, we applied entirely noninvasive methods of fossil reconstruction and morphometry, using a combination of computed tomography, computer graphics, and stereolithography. After electronic restoration, the isolated original pieces were recomposed on the computer screen using external and internal anatomical clues to position the bone fragments and mirror images to complete missing parts. The inferred effects of general compressive deformation that occurred during fossilization were corrected by virtual decompression of the skull. The resulting new reconstruction of the Le Moustier 1 skull shows morphologic features close to the typical Neanderthal adult state. Residual asymmetry of skeletal parts can be traced to in vivo skeletal modification: the left mandibular joint shows signs of a healed condylar fracture, and the anatomy of the occipital region suggests mild plagiocephaly. Using micro-CT analysis, the left incus could be recovered from the matrix filling of the middle ear cavity. Its morphometric dimensions are similar to those of the La Ferrassie III incus. The morphometric characteristics of the inner ear deviate substantially from the condition reported as typical for Neanderthals and fall within the range of modern human variability. (+info)Evolutionary patterns from mass originations and mass extinctions. (7/2344)
The Fossil Record 2 database gives a stratigraphic range of most known animal and plant families. We have used it to plot the number of families extant through time and argue for an exponential fit, rather than a logistic one, on the basis of power spectra of the residuals from the exponential. The times of origins and extinctions, when plotted for all families of marine and terrestrial organisms over the last 600 Myr, reveal different origination and extinction peaks. This suggests that patterns of biological evolution are driven by its own internal dynamics as well as responding to upsets from external causes. Spectral analysis shows that the residuals from the exponential model of the marine system are more consistent with 1/f noise suggesting that self-organized criticality phenomena may be involved. (+info)Environment and behavior of 2.5-million-year-old Bouri hominids. (8/2344)
The Hata Member of the Bouri Formation is defined for Pliocene sedimentary outcrops in the Middle Awash Valley, Ethiopia. The Hata Member is dated to 2.5 million years ago and has produced a new species of Australopithecus and hominid postcranial remains not currently assigned to species. Spatially associated zooarchaeological remains show that hominids acquired meat and marrow by 2.5 million years ago and that they are the near contemporary of Oldowan artifacts at nearby Gona. The combined evidence suggests that behavioral changes associated with lithic technology and enhanced carnivory may have been coincident with the emergence of the Homo clade from Australopithecus afarensis in eastern Africa. (+info)Example sentence: "The patient had significant tooth attrition on all her back teeth, which were causing her frequent headaches and jaw pain."
Mononegaviruses are a family of viruses with a single-stranded RNA genome and a negative-sense sense of replication. The viruses in this family are responsible for a variety of diseases in humans and animals, including rabies, Ebola, and Lassa fever.
Infections caused by Mononegaviruses can be transmitted through contact with infected bodily fluids, such as saliva, blood, or urine, or through contaminated food or water. The viruses can also be spread through close contact with an infected person, such as touching, kissing, or sharing utensils.
Symptoms of Mononegavirales infections can vary depending on the specific virus and the individual infected. Common symptoms include fever, headache, muscle pain, and vomiting. In severe cases, these infections can lead to bleeding disorders, organ failure, and death.
There is no specific treatment for Mononegavirales infections, but supportive care and antiviral medications may be used to manage symptoms and prevent complications. Supportive care may include fluid replacement, pain management, and rest. Antiviral medications may be used to reduce the replication of the virus and prevent further spread of the infection.
Prevention of Mononegavirales infections is key to reducing the risk of transmission. This includes avoiding contact with infected individuals, wearing personal protective equipment (PPE) when caring for infected individuals, practicing good hygiene, and avoiding consumption of contaminated food or water. Vaccines are also available for some Mononegavirales viruses, such as the Ebola vaccine, which can provide protection against infection.
Overall, Mononegavirales infections are a diverse group of viral infections that can have severe consequences if left untreated. Understanding the causes, symptoms, diagnosis, treatment, and prevention of these infections is essential for effective management and control of outbreaks.
There are different types of tooth wear, including:
1. Attrition: This is the most common type of tooth wear and occurs when the enamel surfaces of teeth rub against each other.
2. Abrasion: This type of wear occurs when the outer layer of enamel is worn away by a foreign object such as a toothbrush or dental appliance.
3. Erosion: This type of wear occurs when acidic substances such as citrus fruits, soda, and sugary drinks dissolve the enamel surface of teeth.
4. Exfoliation: This type of wear occurs when a tooth is lost due to decay, injury, or gum disease, and the surrounding teeth shift to fill the gap.
Tooth wear can cause a range of symptoms including:
* Sensitivity to hot or cold temperatures
* Pain when chewing or biting
* Aesthetic concerns such as chipped or worn-down teeth
* Difficulty speaking or pronouncing certain words
Tooth wear can be prevented or treated by practicing good oral hygiene, avoiding acidic and sugary foods and drinks, using a soft-bristled toothbrush, and visiting the dentist regularly for check-ups and cleanings. In severe cases, dental restorations such as fillings, crowns, or veneers may be necessary to restore the shape, size, and function of teeth.
Fossils (band)
Fossils (play)
Beach Fossils
CI1 fossils
Fossils (album)
Guogang Shell Fossils
Salkhan Fossils Park
Fossils of Egypt
Fossils of Iceland
Beach Fossils (album)
List of index fossils
Somersault (Beach Fossils album)
List of transitional fossils
Akron Fossils & Science Center
List of Neanderthal fossils
Pleistocene fossils in Michigan
FOSSIL
List of human evolution fossils
Ice Age Fossils State Park
List of fossils with consumulites
Fossils of the Burgess Shale
Fossil (novel)
Egg fossil
Fossil Ridge
Fossil (disambiguation)
Fossil Cave
Pauline Fossil
Fossil trade
Dakota (fossil)
Fossils - Media Center
Primitive Mammal Fossils | American Museum of Natural History
Excitement over newly discovered marine fossils
Fossil Fuels: The Dirty Facts
See the fabulous fossils unearthed in a garbage dump
Oldest reliable fossils show early life was a beach | New Scientist
Studying fossils with AI tech
Scientists Use NASA Landsat Data to Hunt for Dinosaur Fossils
Fossils - Science in School
Fossils of land-roaming whale species found | wkyc.com
ANU scientists solve mystery shrouding oldest animal fossils - ANU
Monster swallows monster: Fossil reveals doubly fatal Triassic encounter | Reuters
Physicists suggest hunting 'Dark Matter Fossils' deep underground | Astronomy.com
Fossil Women's Analog Watches | Dillard's
Fossil Fuels | The Asian Age
Miocene Fossil Teeth
Oldest Fossils Ever Found Dated to 3.5 Billion Years Ago | Extremetech
Fossil Feathers Paint New Image of Hawaiian Ibis | Live Science
CHEAP: Multi-task magnificently with a Fossil smartwatch for $199
Baby Raptor Fossil Found in Alaska | Nature and Wildlife | Discovery
17 Foundations Unite to Divest Fossil-Fuel Stocks
Vast network of Alabama caves reveals hidden fossils, endangered ecosystem - al.com
Earliest nervous system found in fossil › News in Science (ABC Science)
Fossil Fuel Companies Are Suffering Under the Coronavirus. Good. | The Nation
Fossil's Newest Gen 6 Smartwatches Get An Alexa Upgrade
Former Fossil Ridge player Hansen plays close to home
Early life: Ediacaran and Burgess Shale fossils | Interviews | Naked Scientists
Fossil: Timeline
Tapping 'Our' Resources: Declining Returns on Fossil Fuel Leases - Truthout
Fossil Inks Kate Spade Deal Amid Q4 Earnings Miss - WWD
Fuels14
- Here's everything you need to know about fossil fuels, and why we need to embrace a clean energy future. (nrdc.org)
- For more than a century , burning fossil fuels has generated most of the energy required to propel our cars, power our businesses, and keep the lights on in our homes. (nrdc.org)
- Using fossil fuels for energy has exacted an enormous toll on humanity and the environment-from air and water pollution to global warming . (nrdc.org)
- Here's a look at what fossil fuels are, what they cost us (beyond the wallet), and why it's time to move toward a clean energy future. (nrdc.org)
- What Are Fossil Fuels? (nrdc.org)
- Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. (nrdc.org)
- Because of their origins, fossil fuels have a high carbon content. (nrdc.org)
- With pollution levels in the capital worsening, the advent of e-bikes would stem the burning of fossil fuels. (asianage.com)
- Petition · Force DU to divest from fossil fuels. (change.org)
- We need your signature to show DU that the student body demands divestment from fossil fuels now. (change.org)
- Students Against Fossil Fuels (SAIFF) and Divest DU are working together to push DU to divest. (change.org)
- Fossil fuels, like coal and gasoline, come from plants that died millions of years ago. (nih.gov)
- When we burn fossil fuels today, carbon dioxide goes back into the atmosphere. (nih.gov)
- Fossil fuels, such as petroleum and coal, naturally contain naphthalene. (cdc.gov)
Ediacaran2
- García-Bellido will co-lead the project with geologist Mary Droser , from the University of California, Riverside in the US, who has been studying the Ediacaran fossils for two decades. (cosmosmagazine.com)
- Our discovery about Dickinsonia - and many other Ediacaran fossils - opens up new possibilities as to what they actually looked like. (edu.au)
Scientists5
- With Landsat 5 and 7 data, the scientists can identify areas comprised of sedimentary rocks where vegetation is sparse, requirements for good fossil sites. (nasa.gov)
- CAIRO, Egypt - Egyptian scientists say the fossil of a four-legged prehistoric whale, unearthed over a decade ago in the country's Western Desert, is that of a previously unknown species. (wkyc.com)
- Scientists from The Australian National University (ANU) have discovered that 558 million-year-old Dickinsonia fossils do not reveal all of the features of the earliest known animals, which potentially had mouths and guts. (edu.au)
- The team, which includes scientists from Russian institutions, discovered how Ediacara biota fossils were preserved, despite the macroorganisms not having skeletons or shells. (edu.au)
- Scientists on Thursday described a fossil unearthed in China's Guizhou Province that reveals this Triassic Period drama in exceptional detail and changes the understanding of "megapredation" in prehistoric seas. (reuters.com)
Dickinsonia3
- Dickinsonia fossil at the Nilpena fossil beds. (cosmosmagazine.com)
- They include the iconic, pancake-flat Dickinsonia , the weird tri-symmetrical Tribrachidium , and the South Australian fossil emblem Spriggina . (cosmosmagazine.com)
- The fact that Dickinsonia and other Ediacara biota fossils were preserved at all in the geological record has been a big mystery - until now. (edu.au)
Earth's4
- The title of Earth's Earliest Life has been returned to the fossils in the Pilbara region of Australia. (universetoday.com)
- The natural archive of Earth's geological record contains fossils and other signals of living creatures, which helps us understand the evolutionary story of life on this planet. (cosmosmagazine.com)
- Field Museum researcher Evan Saitta and his colleagues call their method "sediment-encased maturation," and it involves pressing samples into clay tablets which are then baked in an oven at 3500 psi-about the pressure of a professional-grade power washer, and roughly equivalent to the pressure of rock in the shallow parts of Earth's crust, where fossils are found. (popsci.com)
- The unexpected discovery of "ghost" fossils belonging to tiny, ancient organisms could provide insights about how life reacts to climate change in Earth's oceans. (lifeboat.com)
Dinosaur3
- In 1999, an American Museum of Natural History expedition used Landsat images like this one to locate a new site of dinosaur and early mammal fossils in Mongolia's Gobi Desert. (nasa.gov)
- With its first dinosaur fossil collected in 1897, the AMNH fossil amphibian, reptile, and bird collection (FARB) quickly became, and still remains, the largest such collection in the world, currently housing over 30,000 catalogued specimens including many type specimens. (amnh.org)
- Fossils of the oldest diplodocoid dinosaur suggest India was a major centre for neosauropod radiation. (bvsalud.org)
Mammal1
- Researchers found fossils of more than 20 other mammal species there, including those of rhinos, deer, horses, gazelles and rodents, and about one-sixth of these bones had cut marks, suggesting that humans preyed on them, Wu told Live Science. (livescience.com)
Found12
- The Pilbara fossils had held that title since the 1980s, until researchers studying ancient rocks in Greenland found evidence of ancient life there. (universetoday.com)
- Ercan Aksoy, a geology professor at the university, found that the fossils belonged to sea creatures that lived 34 to 48 million years ago. (hurriyetdailynews.com)
- Speaking to the state-run Anadolu Agency, Aksoy said that the mussel-like fossils found on the rocks are scientifically known as "lamellibranchia," those that look like snails are "gastropod," lentil-like remnants are of "nummulites," and the others are of "sea urchins" and "coral. (hurriyetdailynews.com)
- It's one of more than 70,000 fossils found at the Abocador de Can Mata, a landfill near Barcelona that's a paleontologists' paradise. (nationalgeographic.com)
- The researchers think they can use their method to compare what kinds of materials can survive fossilization, identify structures found in actual fossils, and better understand how soft tissues like skin respond to fossilization. (popsci.com)
- Crispin Little describes how he and his team found out - by making their own fossils. (scienceinschool.org)
- The fossil was first found by a team of Egyptian environmentalists in 2008 in an area that was covered by seas in prehistoric times, but researchers only published their findings confirming a new species last month. (wkyc.com)
- A new study has found that ancient hominid fossils in southern Africa may be more than a million years older than previously thought. (egypttoday.com)
- Fossil shark teeth are commonly found at Calvert Cliffs. (md.gov)
- Now, we know those are indeed fossils (Opens in a new window) , making them the oldest biological remains ever found. (extremetech.com)
- Over 200 miles north of the Arctic Circle, paleontologists found baby velociraptor fossils with big implications. (discovery.com)
- This is the first time in history that any baby dromaeosaurid fossil has been found in arctic Alaska. (discovery.com)
Paleontologists3
- Typically, paleontologists use nature itself to figure out how fossils are made. (popsci.com)
- Vegetation and different types of rock and soil stand out clearly in this image, enabling paleontologists to identify favorable rock formations where they are likely to find fossils. (nasa.gov)
- Sallam said that his team did not start examining the fossil until 2017 because he wanted to assemble the best and the most talented Egyptian paleontologists for the study. (wkyc.com)
Sedimentary rocks1
- Fossils older than 3.5 billion years are unlikely, as sedimentary rocks from that time are exceptionally rare and likely to have metamorphosed beyond recognition. (newscientist.com)
Teeth3
- Paul Tafforeau from the University of Poitiers and the European Synchrotron Radiation Facility in Grenoble, France, explains what synchrotron X-ray studies of fossil teeth can tell us about the evolution of orang-utans - and our own origins. (scienceinschool.org)
- We present here a guide to help you identify fossil teeth that you might find from Calvert Cliffs, and other areas where the Miocene is exposed. (md.gov)
- Only fossil teeth are included in the guide. (md.gov)
Researchers3
- These new fossils suggest that far-flung groups of ancient humans were more genetically linked across Eurasia than often previously thought, researchers in the new study said. (livescience.com)
- A team of researchers from UCLA and the University of Wisconsin-Madison has spent the last decade developing a process to analyze the rocks to find out if it does contain the oldest fossils in the world. (extremetech.com)
- The varying carbon ratios in the samples show the fossils are the remains of biological lifeforms, and researchers were also able to make some educated guesses about what type of lifeforms they were. (extremetech.com)
Biological1
- These structures appear to be true microfossils," says Emmanuelle Javaux from the University of Liège in Belgium, who remains to be convinced that the Apex chert fossils are biological. (newscientist.com)
Organisms1
- Most organisms that die don't end up as fossils because the process requires very particular conditions. (extremetech.com)
Evidence4
- The oldest compelling fossil evidence for cellular life has been discovered on a 3.43-billion-year-old beach in western Australia. (newscientist.com)
- The multiple lines of evidence have convinced me," says Malcolm Walter of the University of New South Wales in Sydney, Australia, who thinks that the Apex chert fossils are real. (newscientist.com)
- While it long has been presumed that large apex predators preyed upon other big animals - megapredation is defined as feeding on prey of human size or larger - the Chinese fossil represents the first direct evidence of it, as demonstrated by a prehistoric animal's stomach contents. (reuters.com)
- The fossil bore evidence of this broken neck. (reuters.com)
Species3
- He underlined that the existence of marine fossils in the region and the presence of different species are worth investigating to provide information about how many million years ago the area was on the seafloor. (hurriyetdailynews.com)
- The fossil sheds light on the evolution of whales from herbivore land mammals into carnivorous species that today live exclusively in water. (wkyc.com)
- This new species by itself cannot answer that question, but when viewed in the context of other fossil discoveries, suggests that this dispersal occurred 43 million years ago," said Geisler, adding the new find could possibly serve as a link between Indo-Pakistan and North American regions. (wkyc.com)
Tens of thousands1
- For the less patient, there's a new option: "bake" fossils by packing the work of tens of thousands of years into a 24-hour period. (popsci.com)
Oldest3
- The remarkably well-preserved three-dimensional microbes will help resolve a fierce and long-running debate about what is the oldest known fossil - or at least add to it. (newscientist.com)
- A joint Australian-US team has a plan to use AI to understand the oldest complex fossils on Earth - and they've just received a cool US$300,000 (about $410,000) grant from NASA to do it. (cosmosmagazine.com)
- The oldest fossil whales are about 50 million years old and are believed to have originated in modern-day Pakistan and India. (wkyc.com)
Carbon4
- Crude oil, or petroleum (literally "rock oil" in Latin), is a liquid fossil fuel made up mostly of hydrocarbons (hydrogen and carbon compounds). (nrdc.org)
- Indeed, in terms of emissions, it's the most carbon-intensive fossil fuel we can burn. (nrdc.org)
- SIMS looks at the ratio of carbon atoms present in fossils, but this isn't a dating mechanism. (extremetech.com)
- SIMS analyzes the ratio of carbon-13 to carbon-12 isotopes, comparing samples from the alleged fossils with those from empty sections of rock. (extremetech.com)
Prehistoric2
- The prehistoric whale, known as semi-aquatic because it lived both on land and sea, sported features of an accomplished hunter, the team's leading paleontologist, Hesham Sallam, told The Associated Press - features that make it stand out among other whale fossils. (wkyc.com)
- Egypt's Western Desert region is already known for the so-called Whale Valley, or Wadi Al-Hitan, a tourist attraction and the country's only natural World Heritage site that contains fossil remains of another type of prehistoric whales. (wkyc.com)
Record4
- The fragmentary nature of the human fossil record has made it tricky to determine the biology of the immediate predecessors of modern humans in eastern Eurasia, Trinkaus said. (livescience.com)
- They use those insights to do things like figure out what kinds of animals or habitats are overrepresented in the fossil record as well as to understand time scales, climate change, and other nuances that wouldn't be clear without an idea of how something got from living creature to fossil in the first place. (popsci.com)
- It is among the more dramatic fossils on record, joining others such as one showing the Cretaceous Period dinosaurs Velociraptor and Protoceratops locked in combat and another of the large Cretaceous fish Xiphactinus that had swallowed whole another sizeable fish. (reuters.com)
- Divergence dating studies, which combine temporal data from the fossil record with branch length data from molecular phylogenetic trees, represent a rapidly expanding approach to understanding the history of life. (nih.gov)
Ancient4
- Now a new study of the Pilbara fossils has identified the presence of preserved organic matter in those fossils, and handed the 'Ancient Life' crown back to them. (universetoday.com)
- The fossils were excavated from an ancient beach - now a sandstone formation near the Strelley pool in the Pilbara region - by Brasier's colleague David Wacey from the University of Western Australia in Crawley. (newscientist.com)
- Study of ancient Australian fossils receives funding from NASA. (cosmosmagazine.com)
- The fossil whale has been been named Phiomicetus Anubis, after the god of death in ancient Egypt. (wkyc.com)
Deposits2
- In 1993, William Schopf of the University of California, Los Angeles, claimed he had discovered fossils that are 35 million years older than the present find in nearby deposits known as the Apex chert. (newscientist.com)
- Nobody had looked at fossil beach deposits because it was thought oxygen had caused the decay of all traces of life there," says Brasier. (newscientist.com)
Show1
- What these fossils show is that these groups were basically not separate. (livescience.com)
Life3
- Today, the fossils of early life are mixed up among a background "texture" of the fossilised microbial mat. (cosmosmagazine.com)
- The result looks and acts like a real-life fossil. (popsci.com)
- When you're looking for fossils from the dawn of life on Earth, they're microscopic. (extremetech.com)
Fuel4
- The University of Denver is currently investing millions of dollars of endowment funds into fossil fuel companies. (change.org)
- For more information about fossil fuel divestment, SAIFF, and Divest DU check out our Instagram @SAIFF_DU or contact us directly at [email protected] with any questions. (change.org)
- Fossil-fuel and Combustion-related Air Pollution and Hypertension in the Sister Study [ Abstract Fossil-fuel and Combustion-related Air Pollution and Hypertension in the Sister Study ] [ Synopsis Fossil-fuel and Combustion-related Air Pollution and Hypertension in the Sister Study ] Xu J, Niehoff NM, White AJ, Werder EJ, Sandler DP. (nih.gov)
- Providing energy for the overall economy (oil and gas extraction) takes many thousands of workers involved in energy supply from fossil fuel sources and renewables. (cdc.gov)
Atmosphere1
- In fact, there was minimal oxygen in the atmosphere at this time, meaning that the fossils could preserve well. (newscientist.com)
Study1
- I don't like to think of these fossils as those of hybrids," said study co-author Erik Trinkaus, an anthropologist at Washington University in St. Louis. (livescience.com)
Discovery1
- A journal published out of London this week, acknowledges years of studies of the Prince Creek Formation in Alaska which led to the discovery of fossils in the dromaeosaurid family. (discovery.com)
Present1
- National Evolutionary Synthesis Center hosted the first Fossil Calibrations Working Group (3-6 March, 2011, Durham, NC, USA), bringing together palaeontologists, molecular evolutionists and bioinformatics experts to present perspectives from disciplines that generate, model and use fossil calibration data. (nih.gov)
Practices1
- Presentations and discussions focused on channels for interdisciplinary collaboration, best practices for justifying, reporting and using fossil calibrations and roadblocks to synthesis of palaeontological and molecular data. (nih.gov)
Features1
- Well, alongside its notification and reply features, the Fossil Gen 4 Explorist lets you monitor your health, social media accounts, and check upcoming events. (thenextweb.com)
Rock1
- Some potential fossils were identified in a rock more than 20 years ago that was dated to an age of about 3.5 billion years. (extremetech.com)
Billion years1
- Fossils That Formed 3.5 billion Years Ago, Really are Fossils. (universetoday.com)
Region1
- Marine fossils discovered in eastern Turkey indicate the region was underwater millions of years ago, according to experts. (hurriyetdailynews.com)
Image1
- At the top is a true color Landsat 5 image of the Gobi desert covering the area between Ukhaa Tolgod and the Flaming Cliffs, two of Mongolia's most famous fossil sites. (nasa.gov)
Presence1
- Detail of Nilpena quarry fossil beds with arrows indicating the presence of fossilised matgrounds. (cosmosmagazine.com)
Tree1
- Eun-haeng, fossil tree, more. (medscape.com)
Window1
- These fossils comprise our best window into earliest animal evolution and are the key to understanding our own deep origins. (edu.au)