Vertebrate

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vertebrate : any of a subphylum (Vertebrata) of chordates that comprises animals (such as mammals, birds, reptiles, amphibians, and fishes) typically having a bony or cartilaginous spinal colum which replaces the notochord, a distinct head containing a brain which arises as an enlarged part of the nerve cord, and an internal usually bony skeleton and that includes some primitive forms (such as lampreys) in which the spinal column is absent and the notochord persists throughout life — Webster

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Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones). Vertebrates represent the overwhelming majority of the phylum Chordata. Vertebrates include the jawless fish and the jawed vertebrates, which include the cartilaginous fishes (sharks, rays, and ratfish) and the bony fishes.

Extant vertebrates range in size from the frog species Paedophryne amauensis, at as little as 7.7 mm (0.30 in), to the blue whale, at up to 33 m (108 ft). Vertebrates make up less than five percent of all described animal species; the rest are invertebrates, which lack vertebral columns. — Wikipedia

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This walking fish may reveal how animals first took to land (Roni Dengler, Science Magazine)

Preservation



Monster Mystery Solved (Kate Golembiewski, Field Museum)
The Tully monster is a vertebrate (Victoria E. McCoy, et al., Nature)/a>
Mazon Creek Flora (Field Museum)
Tullimonstrum (Wikipedia)

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Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Palaeontologists identify new Jurassic amphibian
    on February 19, 2020 at 7:00 pm

    A group of Russian and German palaeontologists have described a previously unknown genus and species of prehistoric salamanders. The new amphibian is named Egoria malashichevi—in honor of Yegor Malashichev a talented scientist and associate professor of the Department of Vertebrate Zoology at St Petersburg University, who passed away at the end of 2018.

  • Yes, the Australian bush is recovering from...
    on February 19, 2020 at 2:40 pm

    As bushfires in New South Wales are finally contained, attention is turning to nature's recovery. Green shoots are sprouting and animals are returning. But we must accept that in some cases, the bush may never return to its former state.

  • Reconstructing the diets of fossil vertebrates
    on February 17, 2020 at 8:00 pm

    Paleodietary studies of the fossil record are impeded by a lack of reliable and unequivocal tracers. Scientists from the MPI for Evolutionary Anthropology, the MPI for Chemistry and the Johannes Gutenberg University (JGU) in Mainz have now tested a new method, the isotope analysis of zinc isotopes from the tooth enamel of fossil mammals, and found it to be well suited to expand our knowledge about the diets of fossil humans and other Pleistocene mammals.

  • How dinosaur blood vessels are preserved through...
    on February 17, 2020 at 1:40 pm

    A team of scientists led by Elizabeth Boatman at the University of Wisconsin Stout used infrared and X-ray imaging and spectromicroscopy performed at Berkeley Lab's Advanced Light Source (ALS) to demonstrate how soft tissue structures may be preserved in dinosaur bones—countering the long-standing scientific dogma that protein-based body parts cannot survive more than 1 million years.

  • 5,200-year-old grains in the eastern Altai...
    on February 14, 2020 at 6:36 pm

    Cereals from the Fertile Crescent and broomcorn millet from northern China spread across the ancient world, integrating into complex farming systems that used crop-rotation cycles enabled by the different ecological regions of origin. The resulting productivity allowed for demographic expansions and imperial formation in Europe and Asia. In this study, an international, interdisciplinary team of scientists illustrate that people moved these crops across Eurasia earlier than previously realized, […]