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Showing 1–5 of 5 results
Advanced filters: Author: E. B. BASDEN Clear advanced filters

  • The bony fishes gave rise to terrestrial four-legged animals. For that reason alone their origins are of great interest. A newly described 400-million-year-old fossil from south-eastern Australia consists only of part of a braincase, but it has a mixture of characters which make it a candidate member of the basal group from which the bony fishes arose.

    • Meemann Chang
    News & Views
    Nature
    Volume: 403, P: 152-153

  • Spiracles are tubes that connect the buccopharyngeal cavity with the surface of the skull and are found in many early-diverging fish lineages. Here the authors provide evidence that polypterid fishes use their spiracles to breathe air, and suggest that stem tetrapods may have used them similarly.

    • Jeffrey B. Graham
    • Nicholas C. Wegner
    • John A. Long
    Research
    Nature Communications
    Volume: 5, P: 1-6