Ibero-mesornis
Ibero-mesornis Ibero-mesornis n. A sparrow-sized fossil bird of the Lower Cretaceous having a strutlike pectoral bone and vestigial tail; found in Spain; considered possibly the third most primitive of all birds. [WordNet 1.5]

The Collaborative International Dictionary of English. 2000.

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  • Ibero-mesornis — noun sparrow sized fossil bird of the Cretaceous period having a vestigial tail; found in Spain; considered possibly the third most primitive of all birds • Hypernyms: ↑bird • Member Holonyms: ↑genus Ibero mesornis …   Useful english dictionary

  • genus Ibero-mesornis — noun a genus of fossil bird of the subclass Archaeornithes • Hypernyms: ↑bird genus • Member Holonyms: ↑Archaeornithes, ↑subclass Archaeornithes • Member Meronyms: ↑Ibero mesornis …   Useful english dictionary

  • Archaeornithes — noun primitive reptile like fossil birds of the Jurassic or early Cretaceous • Syn: ↑subclass Archaeornithes • Hypernyms: ↑class • Member Holonyms: ↑Aves, ↑class Aves • Member Meronyms: ↑ …   Useful english dictionary

  • bird genus — noun a genus of birds • Hypernyms: ↑genus • Hyponyms: ↑genus Protoavis, ↑genus Archaeopteryx, ↑genus Archeopteryx, ↑genus Sinornis, ↑genus Ibero mesornis, ↑gen …   Useful english dictionary

  • subclass Archaeornithes — noun primitive reptile like fossil birds of the Jurassic or early Cretaceous • Syn: ↑Archaeornithes • Hypernyms: ↑class • Member Holonyms: ↑Aves, ↑class Aves • Member Meronyms: ↑ …   Useful english dictionary

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