• The Bibliography of Fossil Vertebrates (BFV) aimed to index the world literature of vertebrate paleontology. (vertpaleo.org)
  • However, this volume continued the work begun by O. P. Hay and his colleagues, who had published two previous retrospective volumes covering the literature of North American vertebrate paleontology, in 1902 and 1929. (vertpaleo.org)
  • Thus, for approximately one hundred years the vertebrate paleontology research community has compiled and indexed its own widely dispersed, specialized literature. (vertpaleo.org)
  • Paleontology, which is the science of ancient life and deals with fossils, is mutually interdependent with stratigraphy and with historical geology. (britannica.com)
  • One of the major branches of paleontology is invertebrate paleontology, which is principally concerned with fossil marine invertebrate animals large enough to be seen with little or no magnification. (britannica.com)
  • Although vertebrate paleontology has close ties with stratigraphy, vertebrate fossils usually have not been extensively used as index fossils for stratigraphic correlation, vertebrates generally being much larger than invertebrate fossils and consequently rarer. (britannica.com)
  • 2005, Vertebrate Paleontology in Arizona . (docslib.org)
  • The researchers published their findings in the March issue of the Journal of Vertebrate Paleontology, which was released in mid-April. (eurekalert.org)
  • Historically, paleontology emerged as a science for describing and cataloging fossils, but these early efforts were not accomplished using a rigorous and consistent evolutionary framework until the acceptance and application of Hennig's concepts of phylogenetic systematics in the 1960s. (mdpi.com)
  • Kathlyn M. Stewart and Alison M. Murray "Biogeographic Implications of Fossil Fishes from the Awash River, Ethiopia," Journal of Vertebrate Paleontology 37(1), (1 January 2017). (bioone.org)
  • We were astonished to discover that the tooth rows of the whorls have a clear left or right offset, which indicates positions on opposing jaw rami," said Prof. ZHU Min from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences. (cas.cn)
  • Journal of Vertebrate Paleontology 32 (5), 1172-1185. (wikipedia.org)
  • Journal of Vertebrate Paleontology 25 (3), 655-664. (wikipedia.org)
  • Journal of Vertebrate Paleontology 20 (3), 561-576. (wikipedia.org)
  • Journal of Vertebrate Paleontology 32 (5), 1157-1171. (wikipedia.org)
  • Journal of Vertebrate Paleontology 28 (3), 863-872. (wikipedia.org)
  • Fossil specimens are deposited in the University of California Museum of Paleontology as localities V99822 and V99785. (nature.com)
  • The Paleontology Portal is a resource for anyone interested in paleontology, from the professional in the lab to the interested amateur scouting for fossils to the student in any classroom. (lu.se)
  • It includes fossil images searchable by taxon and time period, the history of paleontology in the US, a guide to particularly rich fossil sites, a searchable database of museum collections, and a nice webliography of additional sources. (lu.se)
  • The site was produced by the University of California Museum of Paleontology, the Paleontological Society, the Society of Vertebrate Paleontology, and the United States Geological Survey. (lu.se)
  • The Paleontology Portal är en resurs som riktar sig till alla som är intresserade av paleontologi, från den professionella labbteknikern till den fossilletande amatören till studenten. (lu.se)
  • Webbplatsen är producerad av University of California Museum of Paleontology, Paleontological Society, Society of Vertebrate Paleontology och United States Geological Survey med medel från National Science Foundation. (lu.se)
  • Fossil mammals, however, have been widely used as index fossils for correlating certain nonmarine strata deposited during the Paleogene Period (about 65.5 to 23 million years ago). (britannica.com)
  • Vertebrates (/ˈvɜːrtəbrɪts, -ˌbreɪts/) are deuterostomal animals with bony or cartilaginous axial endoskeleton - known as the vertebral column, spine or backbone - around and along the spinal cord, including all fish, amphibians, reptiles, birds and mammals. (wikipedia.org)
  • While the more derived vertebrates lack gills, the gill arches form during fetal development, and form the basis of essential structures such as jaws, the thyroid gland, the larynx, the columella (corresponding to the stapes in mammals) and, in mammals, the malleus and incus. (wikipedia.org)
  • Here, we describe an important contribution to the record and report stratigraphically-constrained fossils of mammals, birds and reptiles from recent excavations at Ti's al Ghadah in the southwestern Nefud Desert. (brookes.ac.uk)
  • If this speculation is correct, Thyrohyrax and its fossil relatives would be the only mammals found so far to use such a skeletal structure for producing sound, the researchers said. (eurekalert.org)
  • Researchers used species data for most land-vertebrate species (33,548 amphibians, birds, mammals, and reptiles) on recent exposure to maximum temperatures to predict the impacts of upcoming extreme temperatures by the end of the 21st century. (azocleantech.com)
  • A recent article speaks of "the evolutionary history of the world's terrestrial vertebrates: amphibians, birds, mammals and reptiles" and how the "evolutionarily distinct species" of today are supposedly being obstructed by the "human footprint. (icr.org)
  • Over the past 530 million years, the vertebrate lineage branched out from a primitive jawless fish wriggling through Cambrian seas to encompass all the diverse forms of fish, birds, reptiles, amphibians, and mammals. (sciencedaily.com)
  • New regulatory elements affecting transcription factors peaked in our early vertebrate ancestors 500 million years ago, then declined steadily to background levels by the time mammals evolved. (sciencedaily.com)
  • I am a palaeontologist and evolutionary biologist who studies the anatomy, phylogeny, and evolution of fossil vertebrates, particularly dinosaurs, birds, and mammals. (lu.se)
  • Abstract-The Triassic System in Arizona has yielded numerous world- class fossil specimens, includ- ing numerous type specimens. (docslib.org)
  • We are fellow collectors and pride ourselves as a trusted source of quality fossil and mineral specimens offered at an affordable price. (curiogrove.com)
  • By painstakingly measuring hundreds of specimens of a fossil mammal called Thyrohyrax, recovered from the famous fossil beds of Egypt's Fayum Province, the researchers determined that males of this now-extinct species -- and only males -- had oversized, swollen lower jaws shaped much like a banana. (eurekalert.org)
  • The research team set out to examine newly collected yunnanozoan fossil specimens in previously unexplored ways, conducting a high-resolution anatomical and ultrastructural study. (scitechdaily.com)
  • The team applied X-ray microtomography, scanning electron microscopy, transmission electron microscopy, Raman spectrometry, Fourier-transform infrared spectroscopy, and energy-dispersive X-ray spectroscopy on the fossil specimens. (scitechdaily.com)
  • 1) He additionally observes that these fossils are the first Pleistocene specimens whose stratigraphic horizon was known. (georgiasfossils.com)
  • Modern specimens are deposited in the University of California Museum of Vertebrate Zoology under accession number 14590. (nature.com)
  • Over the years, researchers have attempted to define a set of criteria from which to evaluate the nature of purported MB-like tissues recovered from fossil specimens. (lu.se)
  • Based on recently published data and our own observations of MB distribution and structure using computed tomography and histochemistry, we attempt to advance the discourse on identifying MB in fossil specimens. (lu.se)
  • The emergence of gnathostomes [a superclass of the above-mentioned vertebrates] from jawless vertebrates marks a major event in the evolution of vertebrates. (icr.org)
  • The phylogenetic analysis presented in the study identifies Qianodus as a primitive chondrichthyan, implying that jawed fish were already quite diverse in the Lower Silurian and appeared shortly after the evolution of skeletal mineralization in ancestral lineages of jawless vertebrates. (cas.cn)
  • The first vertebrates were jawless, but vertebrates now exhibit a variety of teeth and jaws that differ greatly across species in form and function. (cosmosmagazine.com)
  • Vertebrate fossils of Late Triassic age in Arizona are overwhelmingly body fossils of temnospondyl amphibians and archosaurian reptiles , with trace fossils largely restricted to coprolites. (docslib.org)
  • As with other efforts to map human threats across all land vertebrates, we show that amphibians and reptiles are much more at risk. (azocleantech.com)
  • 9 One does not have to bring up unknown and unobserved vertebrate evolution and its extreme ages in order to exercise care for the created environment and the animals it contains. (icr.org)
  • These fossils are indexes of relative geologic age and may be termed index fossils . (britannica.com)
  • The invertebrates that are used as index fossils generally possess hard parts, a characteristic that has fostered their preservation as fossils. (britannica.com)
  • The spire-bearing spiriferoids were perhaps the most common and have been used as index fossils . (britannica.com)
  • The evolutionary process that moved invertebrates toward becoming vertebrates - and what those earliest vertebrates looked like - has been a mystery to scientists for centuries. (scitechdaily.com)
  • In total over 36,000 vertebrate fossils (including mammoths , mastodons , ground sloths , horses , camels and deer ), more than 100 species of fossil invertebrates and over 100 species of fossil plants were found in sediments deposited by an alpine lake during the last interglacial period . (wikipedia.org)
  • Invertebrates are the name of all other animals that do not belong to the insects or vertebrates. (lu.se)
  • The upper two beds do contain some Pleistocene fossils, but Auffenberg (1963) regards them as being reworked out of the lowest level. (ufl.edu)
  • At the base of the sequence is a soft, reddish orange clay that contains late Pleistocene fossils without any modern contamination. (ufl.edu)
  • Overlying the marl is a modern deposit rich in loose snail shells and unconsolidated sediment that contain a chronologically mixed assemblage of Pleistocene fossils, prehistoric artifacts, and modern debris such as lead fishing sinkers. (ufl.edu)
  • The fossils found within Grand Canyon span over a billion years of Earth history, from stromatolites found in the Bass Limestone (1.2 billion years ago) to Pleistocene megafauna (15,000 years ago) exhumed from cave sediments. (nps.gov)
  • The current paucity of Pleistocene vertebrate records from the Arabian Peninsula - a landmass of over 3 million km2 - is a significant gap in our knowledge of the Quaternary. (brookes.ac.uk)
  • In jawed vertebrates, the first gill arch pair evolved into the jointed jaws and form an additional oral cavity ahead of the pharynx. (wikipedia.org)
  • Organic evolution is the essential principle involved in the use of fossils for stratigraphic correlation. (britannica.com)
  • Investigating the role of vertebrate evolution in shaping the history of life on Earth. (nhm.ac.uk)
  • Overlying Chinle Group strata are part of a single best "laboratory" for studying Upper Triassic vertebrate vast depositional basin that, during Late Triassic time, spanned as evolution in stratigraphic and biostratigraphic context (Petrified much as 2.3 million km2 along the western equatorial margin of Forest National Park). (docslib.org)
  • The vertebrates traditionally include the hagfish, which do not have proper vertebrae due to their loss in evolution, though their closest living relatives, the lampreys, do. (wikipedia.org)
  • They've also taught us about the origins of internal fertilization and live birth in vertebrate evolution. (lifestylenews.net)
  • At this point in vertebrate evolution, the neck was so short that the heart was located at the back of the throat and under the gills. (lifestylenews.net)
  • Arthrodires provide the first anatomical evidence to support the hypothesis that, in jawed vertebrates, the repositioning of the heart to a more forward position was linked to the evolution of jaws and a neck. (lifestylenews.net)
  • For several decades, Simons visited the site in search of early ape and monkey fossils, as part of his main research focus on the evolution of primates leading up to humans. (eurekalert.org)
  • This specimen offers insights into the brain evolution of ray-finned fishes, the most diverse group of living vertebrates. (natureasia.com)
  • The article addresses the threat to the world's animals-a valid concern-but corrupts the issue unnecessarily with the unobserved process of vertebrate evolution and deep evolutionary time. (icr.org)
  • Vertebrates: Comparative Anatomy, Function & Evolution , 6th ed. (icr.org)
  • Qianodus provides us with the first tangible evidence for teeth, and by extension jaws, from this critical early period of vertebrate evolution," said LI Qiang from Qujing Normal University. (cas.cn)
  • They found three broad categories of evolutionary innovations in gene regulation that increased in frequency during different periods in vertebrate evolution. (sciencedaily.com)
  • Most of the changes that have happened during vertebrate evolution, as animals acquired new body plans and features like feathers and hair, were not the result of new genes but of new regulatory elements that turn genes on and off in different patterns," Haussler said. (sciencedaily.com)
  • The findings also provide the first indication of distinct phases in vertebrate molecular evolution, with changes in different types of biological processes dominating during different periods of evolutionary history. (sciencedaily.com)
  • We've published numerous articles on brain endocast structure in all the major groups of crocodilians, dinosaurs, and fossil birds, including diverse ornithischians, sauropods, and theropods. (lu.se)
  • Reference: "Ultrastructure reveals ancestral vertebrate pharyngeal skeleton in yunnanozoans" by Qingyi Tian, Fangchen Zhao, Han Zeng, Maoyan Zhu and Baoyu Jiang, 7 July 2022, Science . (scitechdaily.com)
  • Organisms preserved as fossils that lived over a relatively short span of geologic time and that were geographically widespread are particularly useful for stratigraphic correlation. (britannica.com)
  • [2] [1] Thousands of fossils were collected along with stratigraphic, geochronologic, palynologic, paleoentomologic, and paleobotanic data that was subsequently used to reconstruct the paleoecosystem at ancient Lake Ziegler. (wikipedia.org)
  • There is also the pleasure to share our diverse research collection of marine vertebrate fossils, dating from the Late Permian through to Late Cretaceous. (lu.se)
  • SALTY SCENE The planet's earliest four-footed vertebrates called tetrapods (illustrated) lived in the brackish waters of an estuary or delta, new research suggests. (sciencenews.org)
  • But humans are being blamed by secular scientists for threatening-of all things-vertebrate evolutionary history! (icr.org)
  • 3 Ironically, there is nothing known for sure about the alleged evolutionary history of vertebrates-they have always been distinct from other life forms. (icr.org)
  • The evolutionary history of vertebrates began, at the latest, during the early Cambrian (c. 520 Myr) with the first occurrence of laterally flattened soft-bodied organisms known as chordates, possessing a notochord (the forerunner of the vertebral column) but devoid of backbone and jaw. (naturalsciences.be)
  • Photographs of fossils and illustrations of what dinosaurs might have looked like in the flesh help tell the story. (ucpress.edu)
  • The San Juan Basin has a rich history of fossil discovery and contains a record of time immediately before and after the extinction of the dinosaurs. (fmtn.org)
  • Bibliography and Catalogue of Fossil Vertebrata of North America. (vertpaleo.org)
  • 1962. Bibliography of Fossil Vertebrates Exclusive of North America. (vertpaleo.org)
  • The fossil pictured above, the first-discovered specimen of Dimetrodon from the Bromacker quarry, may not look like much, but it was the first record of Dimetrodon outside of North America. (carnegiemnh.org)
  • We couldn't believe our eyes, because of all the Early Permian fossils known from North America, Dimetrodon was Thomas' favorite. (carnegiemnh.org)
  • Over millions of years, retroviruses, which insert their genetic material into the host genome as part of their replication, have left behind bits of their genetic material in vertebrate genomes. (phys.org)
  • Now researchers combing through the DNA sequences of vertebrate genomes have identified three distinct periods of evolutionary innovation that accompanied this remarkable diversification. (sciencedaily.com)
  • Interactive 3D Model of fossil trackways from Grand Canyon National Park. (nps.gov)
  • Interactive 3D Model This fossil, is the type specimen for T. whitei and is from the Hermit Shale of Lower Permian time (~280 million years old). (nps.gov)
  • Scientists have hypothesized that the pharyngeal arch evolved from an unjointed cartilage rod in vertebrate ancestors, such as the chordate amphioxus, a close invertebrate relative of the vertebrates. (scitechdaily.com)
  • All basal vertebrates are aquatic and breathe with gills. (wikipedia.org)
  • The new anatomical observations the team achieved in their study, support the evolutionary placement of yunnanozoans at the very basal part of the vertebrate tree of life. (scitechdaily.com)
  • Molecular analysis since 1992 has suggested that hagfish are most closely related to lampreys, and so also are vertebrates in a monophyletic sense. (wikipedia.org)
  • Stem vertebrate is a term that refers to those vertebrates that are extinct, but very closely related to living vertebrates. (scitechdaily.com)
  • Using synchrotron microtomography, a team of Swedish, Czech, French and UK researchers led by Sweden's Uppsala University took a detailed look at a collection of 400-million-year-old fossils of acanthothoracids - an early fish group closely related to the very first jawed vertebrates - found near the Prague Basin in the Czech Republic a century ago. (cosmosmagazine.com)
  • A team of scientists has now conducted a study of yunnanozoans, extinct creatures from the early Cambrian period (518 million years ago), and discovered evidence that they are the oldest known stem vertebrates. (scitechdaily.com)
  • Two types of pharyngeal skeletons-the basket-like and isolated types-occur in the Cambrian and living vertebrates. (scitechdaily.com)
  • For this reason, the vertebrate subphylum is sometimes referred to as "Craniata" when discussing morphology. (wikipedia.org)
  • 2004). Vertebrate fossils have been found in the bed of the river, along its entire length, as well as in some of the individual springs and the channels connecting them to the river. (ufl.edu)
  • The primary, undisturbed, fossil-bearing unit found along the banks of the river is a gray to white sandy clay that grades to pure sand. (ufl.edu)
  • Fossil bones from these two layers are much lighter in color than those typically found in the Ichetucknee River. (ufl.edu)
  • Interactive 3D Model Stock's vampire bat fossils are often found in association with giant ground sloths, which suggests they might have been one of this bat's preferred sources of food. (nps.gov)
  • Many types of fossils from around the world can be found in this collection. (curiogrove.com)
  • In all vertebrates, the mouth is found at, or right below, the anterior end of the animal, while the anus opens to the exterior before the end of the body. (wikipedia.org)
  • With only one exception, the defining characteristic of a vertebrate is the vertebral column, in which the embryonic notochord found in all chordates is replaced by a segmented series of mineralized elements called vertebrae separated by fibrocartilaginous intervertebral discs, which are derived embryonically and evolutionarily from the notochord. (wikipedia.org)
  • The circumstances under which it was found were very different from the discovery of other fossils from the Bromacker quarry. (carnegiemnh.org)
  • The Gogo fish fossils used in this study were discovered within rocks found in the Kimberley. (lifestylenews.net)
  • Also, relatively few Thyrohyrax fossils had been found for study. (eurekalert.org)
  • We also found that by 2099 in this scenario, 3,773 species, or 11% of total land vertebrates are likely to face extreme thermal events during most of the year. (azocleantech.com)
  • Dr. Burris will give an overview of the kinds of plant and animal fossils that are found in the basin, the rocks that preserve those fossils, and how the environment changed during those times. (fmtn.org)
  • In an effort to better understand the role of the pharyngeal arch in ancient vertebrates, the research team studied the fossils of the soft-bodied yunnanozoans found in the Yunnan Province, China. (scitechdaily.com)
  • Hagfish are the only extant vertebrate whose notochord is not integrated into the vertebral column. (wikipedia.org)
  • This, the FosSahul database, includes 9,302 fossil records from 363 deposits, for a total of 478 species within 215 genera, of which 27 are from extinct and extant megafaunal species (2,559 records). (edu.au)
  • The vertebrate ancestor no doubt had more arches than this, as some of their chordate relatives have more than 50 pairs of gills. (wikipedia.org)
  • The Adamanian records of Arizona are spectacular, and include the "type" Adamanian assemblage in the Petrified Forest National Park, the world's most diverse Late Triassic vertebrate fauna (that of the Placerias /Downs' quarries), and other world-class records such as at Ward's Terrace, the Blue Hills, and Stinking Springs Mountain. (docslib.org)
  • Others consider them a sister group of vertebrates in the common taxon of craniata. (wikipedia.org)
  • Resursen innehåller bilder av fossil som är sökbara via taxon och tidsperiod, Förenta staternas paleontologihistoria, en guide till särskilt rika fossilfyndigheter, en sökbar databas över museisamlingar och en samling länkar till relaterade webbresurser. (lu.se)
  • Fossils play another major role in geology because they serve as indicators of ancient environments . (britannica.com)
  • Earth's earliest land-walking vertebrates didn't paddle about in freshwater lakes or rivers. (sciencenews.org)
  • 7 The student knows that scientific dating methods of fossils and rock sequences are used to construct a chronology of Earth's history expressed in the geologic time scale. (carleton.edu)
  • I have done fieldwork with colleagues around the world and have described over 20 new species of fossil vertebrates. (lu.se)
  • All of these volumes are generally considered part of the Bibliography of Fossil Vertebrates series, which thus includes an unbroken record of the entire published literature on vertebrate fossils, starting at the year 1509. (vertpaleo.org)
  • The combination of an exceptionally rich record and outstanding exposures of sedimentary sections that allow the correlation of tetrapod faunas means that Arizona will remain a hotbed of research on Middle and Late Triassic vertebrates for the foreseeable future. (docslib.org)
  • Clarotes , Cichlidae, and Parachanna , which are native to the African continent where they have a long fossil record, and cf. (bioone.org)
  • Faced with these intrinsic obstacles and with little evidence from the fossil record to help, it is hardly surprising that disagreement over the origin of chordates [a large phylum containing all vertebrates] has been common. (icr.org)
  • 2010. The Fossil Record: Unearthing Nature's History of Life . (icr.org)
  • New findings answer questions in the fossil record. (scitechdaily.com)
  • However, the group's early history is unclear because of an incomplete fossil record. (nature.com)
  • We've developed new imaging and quantitative approaches to track brain-surface structure observed today into the fossil record. (lu.se)
  • The vertebrates consist of all the taxa within the subphylum Vertebrata (/ˌvɜːrtəˈbreɪtə/) (chordates with backbones) and represent the overwhelming majority of the phylum Chordata, with currently about 69,963 species described. (wikipedia.org)
  • Artist's restoration of an American mastodon ( Mammut americanum ), the most numerous of the megafauna discovered in the Snowmass Village fossil site. (wikipedia.org)
  • The Middle Awash fossil deposits are located within the Horn of Africa, long suggested as a possible crossing point between Africa and the Arabian Peninsula in the late Miocene. (bioone.org)
  • The discovery indicates that the well-known jawed vertebrate groups from the so-called "Age of Fishes" (420 to 460 million years ago) were already established some 20 million years earlier. (cas.cn)
  • One of the most challenging evolutionary questions today is whether lungs were present in the earliest jawed vertebrates. (lifestylenews.net)
  • The results of their study show that the yunnanozoans are the earliest and also the most primitive relatives of crown-group vertebrates. (scitechdaily.com)
  • Studying placoderms is important as they provide insight into the origins of the jawed vertebrate body plan (vertebrates are animals with backbones). (lifestylenews.net)
  • A few vertebrates have secondarily lost this feature and retain the notochord into adulthood, such as the sturgeon and coelacanth. (wikipedia.org)
  • The fossil bed is overlain by a carbonaceous clay of salt-marsh or lagoonal origin. (georgiasfossils.com)
  • While the fine details of the bony skeleton were uncovered, soft tissues in the fossils dissolved away. (lifestylenews.net)
  • Vertebrate is derived from the word vertebra, which refers to any of the bones or segments of the spinal column. (wikipedia.org)
  • In terrestrial fossil bones, concentrations of REE are highest at the bone surface and decrease with depth into the trabecular bone, consistent with diffusion-limited models. (temple.edu)
  • REE concentration gradients are generally steeper in marine fossils than in terrestrial fossil bones, indicating longer periods of REE uptake in terrestrial fossils. (temple.edu)
  • However, periods of diffusion in marine fossil bones are much shorter, suggesting the possibility for bio-molecule preservation. (temple.edu)
  • It's possible that the fossil bed had been disturbed by the time the road crew noticed the bones. (georgiasfossils.com)
  • Researchers discovered that, while thousands of species are likely to be exposed to future heatwaves, the number of exposed species is much greater in high-emission scenarios compared to a scenario that lowers human dependence on fossil fuels. (azocleantech.com)
  • This led to a lot of carbon being buried and fossilised, and it is this fossilised carbon that is our primary source for fossil fuels such as charcoal and oil. (lu.se)
  • The overriding aim of this project is to analyse the economic and environmental trade-offs of policy interventions to promote the use of agricultural land for producing biomass to reduce the use of fossil-based fuels. (lu.se)
  • 6.1 Fossils are the preserved evidence of ancient life. (carleton.edu)
  • Drawing on these results we will be able to partly recreate the cognition of long extinct species, by making brain models based on fossils. (lu.se)
  • A remote site in Guizhou Province of south China, containing sequences of sedimentary layers from the distant Silurian period (around 445 to 420 million years ago), has produced spectacular fossil finds, including isolated teeth identified as belonging to a new species ( Qianodus duplicis ) of primitive jawed vertebrate. (cas.cn)
  • The UK's largest assemblage of fossil hominin remains. (nhm.ac.uk)
  • Jawed vertebrates are typified by paired appendages (fins or limbs, which may be secondarily lost), but this trait is not required to qualify an animal as a vertebrate. (wikipedia.org)
  • This puts into question the current evolutionary models for the emergence of key vertebrate innovations such as teeth, jaws, and paired appendages," said Ivan Sansom, a co-author of the study from the University of Birmingham. (cas.cn)
  • The park's fossil resource have been known to scientists for over 100 years. (nps.gov)
  • Recently, NPS scientists used imaging techniques to create virtual 3D fossils.The examples below are just some of your park's paleontological treasures. (nps.gov)
  • With the advent of an X-ray method called "synchrotron microtomography"-first used on the Gogo fossils in 2010-more muscles were revealed from the Gogo placoderms, including neck and abdominal muscles. (lifestylenews.net)
  • The combined number of vertebrate fossils from the Ichetucknee River in the Florida Museum of Natural History collection is over 11,000. (ufl.edu)
  • Over the years, as researchers have studied how vertebrates evolved, a key focus of research has been the pharyngeal arches. (scitechdaily.com)
  • Fish fossils from near Fitzroy Crossing were first reported from Gogo Station in the 1940s. (lifestylenews.net)
  • Most of our knowledge of Clarendonian vertebrate life in Florida comes from the late Cl3 Love Bone Bed and the early Cl2 Agricola Fauna. (ufl.edu)
  • The Perovkan (early Anisian ) faunas of the Holbrook Member of the Moenkopi Formation are exceptional in that they yield both body- and trace fossils of Middle Triassic vertebrates and are almost certainly the best-known faunas of this age in the Americas. (docslib.org)
  • Paleontologists have known of the internal mandibular fenestra among fossil hyraxes since early last century, but its significance was poorly understood," Simons said. (eurekalert.org)
  • A comparison with the more numerous mature whorls provided the palaeontologists with a rare insight into the developmental mechanics of early vertebrate dentitions. (cas.cn)
  • Our revised timeline for the origin of the major groups of jawed vertebrates agrees with the view that their initial diversification occurred in the early Silurian," said Prof. ZHU. (cas.cn)