This revision presents fossil avian material from Late Cretaceous (Maastrichtian) marine deposits of New Jersey, incorporating newly collected specimens from the Inversand marl pits and reexamining century-old types. About eight genera and nine species are recognized, most assigned to a primitive charadriiform-like assemblage provisionally referred to the form family Graculavidae (including genera such as Graculavus, Telmatornis, Anatalavis, Laornis, and Palaeotringa). A new family, Tytthostonychidae, and the genus and species Tytthostonyx glauconiticus are proposed for a distinctive humerus possibly allied to procellariiform or pelecaniform birds. The fauna appears neognathous but cannot be placed in modern families.