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  • Taxa
  • At the rear of the book is a phylogenetic classification which combines both the Linnaean hierarchy and the cladistic arrangement, and has been used as a guideline for the Wikipedia pages on living and extinct vertebrate taxa. (wikipedia.org)
  • fossils
  • The first vertebrates are known from fossils in the Maotianshan shales in China, dated to between 525 and 520 million years ago, during an episode of adaptive radiation called the Cambrian explosion. (wisegeek.com)
  • These fish predate other vertebrate fossils by about 30 million years. (wisegeek.com)
  • SVP considers that "vertebrate Fossils are significant nonrenewable paleontological resources that are afforded protection by federal, state and local environmental laws and guidelines", and that scientifically important fossils, especially those found on public land, should be held in the public trust, preferably in a museum or research institution, where they can benefit the scientific community as a whole. (wikipedia.org)
  • citation needed] The ethics by-law of SVP states "The barter, sale, or purchase of scientifically significant vertebrate fossils is not condoned, unless it brings them into or keeps them within a public trust. (wikipedia.org)
  • palaeontology
  • It combined an account of the embryology, anatomy, physiology, biochemistry, palaeontology, and ecology of all vertebrates and, the author argued, he has attempted via a documentation of the "central fact of biology, that life goes on", and to combine the results of the studies of these into a single work in which this continuity is maintained. (wikipedia.org)
  • Vertebrate Palaeontology (3rd ed.), by Michael J. Benton" (PDF). (wikipedia.org)
  • mammals
  • 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)
  • genes
  • Mitochondrial genes in some vertebrates (including humans) have incomplete stop codons ending in U or UA, which become complete termination codons (UAA) upon subsequent polyadenylation. (wikipedia.org)
  • The Vertebrate Genome Annotation (VEGA) database is a biological database dedicated to assisting researchers in locating specific areas of the genome and annotating genes or regions of vertebrate genomes. (wikipedia.org)
  • The VEGA browser is based on Ensembl web code and infrastructure and provides a public curation of known vertebrate genes for the scientific community. (wikipedia.org)
  • ancestor
  • A possible ancestor to the lungfish and land vertebrates has been discovered in China, and this fossil (Styloichthys) bridges a gap. (springer.com)
  • Living 417 million years ago, it could represent one of the last ramifications before the common ancestor to the lungfish and land vertebrates. (springer.com)
  • 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)
  • fossil record
  • The most direct source of information about the conquest of land by vertebrates is of course the Paleozoic fossil record of limbed vertebrates and their closest fi nned pre de ces sors. (jhu.edu)
  • The position of the SVP is that "The fossil record of vertebrates unequivocally supports the hypothesis that vertebrates have evolved through time" and that evolution is "the central organizing principle of biology, understood as descent with modification" and is important to geology as well. (wikipedia.org)
  • invertebrates
  • I think one of the most interesting things I have come across is learning that there are actually very few vertebrates in the world, considering the number of invertebrates that exist. (wisegeek.com)
  • If you have children who are interested in science, teaching them about vertebrates and invertebrates is a great way to get them thinking about how animals are different. (wisegeek.com)
  • what do all vertebrates have but only some invertebrates have? (wisegeek.com)
  • invasion
  • The main invasion of land by vertebrates occurred in the Carboniferous. (jhu.edu)
  • These invasions allowed for the appropriate niche development that would ultimately facilitate the vertebrate invasion. (wikipedia.org)
  • Furthermore, the late Devonian event is only significant in that it was the first land invasion by vertebrate organisms, and that it resulted in an explosion of vertebrate biodiversity due to the many different niches that these species were able to exploit. (wikipedia.org)
  • animals
  • For this reason the largest land animals have been vertebrates for hundreds of millions of years. (wisegeek.com)
  • More recently, the cetaceans (whales, evolving just 50 million years ago from land animals) have been the largest animals of the seas, so vertebrates make up the largest animals both on land and sea. (wisegeek.com)
  • More than three hundred million years ago-a relatively recent date in the two billion years since life first appeared-vertebrate animals first ventured onto land. (jhu.edu)
  • The most significant change that occurred during early vertebrate evolution was the appearance of animals that could live and breathe on land. (britannica.com)
  • Evolution of the Vertebrates, subtitled "A History of the Backboned Animals Through Time" is a basic paleontology textbook by Edwin H. Colbert, published by John Wiley & Sons. (wikipedia.org)
  • Animals Myllokunmingia unidentified Radiodontid (possibly Anomalocaris) Lampreys Skates Parayunnanolepis Coelacanth Tiktaalik Chinese giant salamander Dinosaurs Sinosauropteryx Anchiornis David Attenborough embarks on an epic 500-million-year journey to unravel the incredible rise of the vertebrates. (wikipedia.org)
  • fins
  • Jawed vertebrates are typified by paired appendages (fins or legs, which may be secondarily lost), but this trait is not required in order for an animal to be a vertebrate. (wikipedia.org)
  • species
  • Lungfish include 6 species, inhabiting shallow lakes or rivers, whereas the second ramification includes all the land vertebrates. (springer.com)
  • If you consider all of the named animal species of the world, only 1% is estimated to actually be vertebrates! (wisegeek.com)
  • Vertebrates represent the overwhelming majority of the phylum Chordata, with currently about 66,000 species described. (wikipedia.org)
  • comparable
  • A slight swelling of the anterior end of the nerve cord is found in the lancelet, a chordate, though it lacks the eyes and other complex sense organs comparable to those of vertebrates. (wikipedia.org)
  • history
  • The data summarized here can be used to present a preliminary reconstruction of the history of the conquest of land by vertebrates (Fig. 7.1). (jhu.edu)
  • however
  • However, a few vertebrates have secondarily lost this anatomy, retaining the notochord into adulthood, such as the sturgeon and coelacanth. (wikipedia.org)
  • Field
  • The latest edition, the fifth edition, was cowritten with Michael Morales and Eli C. Minkoff, and has been revised to incorporate recent discoveries and current developments in the field of vertebrate evolution. (wikipedia.org)