Gigantornis eaglesomei was a giant prehistoric bird, described from a fragmentary specimen from the Eocene of Nigeria. It was considered to be a representative of the albatross family (Diomedeidae), but was later referred to the bony-toothed birds, (Pelagornithidae). One of the largest pseudotooth birds, with an inferred wingspan of about 6 m (20 ft) it is among the largest birds ever.