If Macrodontopteryx is indeed a distinct genus, perhaps some pseudotooth bird fossils found in Lutetian (Middle Eocene, MP11-13, about 45 Ma) deposits at Etterbeek (Belgium) belong therein.
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An Early Oligocene (Stampian, MP21-23, about 32 Ma) distal radius from Hamstead, Isle of Wight (England) was also assigned to Macrodontopteryx.