ibero-mesornis definition

  • noun:
    • A sparrow-sized fossil bird associated with Lower Cretaceous having a strutlike pectoral bone and vestigial end; found in Spain; considered most likely the 3rd most ancient of most wild birds.
    • sparrow-sized fossil bird for the Cretaceous duration having a vestigial end; present Spain; considered possibly the third most ancient of most birds

Related Sources

  • Hypernym for "ibero-mesornis"
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