Odontopteryx n. : An extinct Eocene bird having the jaws strongly serrated, or dentated, but destitute of true teeth. It was found near London.

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Taxonomy
Odontopteryx, birds, Mayr, genus, Dasornis, González, Barba, Osteodontornis, specimen, Paleogene, species, Pelagornis, lineage, Bourdon, Pelagornithidae, fossils, fulltext, free encyclopedia.

Defination from the web:
Odontopteryx has been formally described, but several other named taxa of pseudotooth birds might belong here too. The type species Odontopteryx toliapica is known from the Ypresian (Early Eocene) London Clay of the Isle of Sheppey (England) and slightly older ...