Genus: Anatalavis OLSON & PARRIS, 1987
Etymology: from Latin, anas, "duck," Latin, ala, "wing" and Latin, avis, "bird": the gender is feminine.“Duck-winged-bird.”

Species: rex (SHUFELDT, 1915) OLSON & PARRIS, 1987
Etymology: Greek, rex, "the king."
= Telmatornis rex SHUFELDT, 1915

Holotype: YPM 902

Locality: Hornerstown marl, Upper Freehold Township, Monmouth County, New Jersey.

Horizon: Hornerstown Formation, Rancocas Group.

Biostratigraphy:

Age: Late Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Distal end of right humerus.

Referred material:

Locality: "Cream Ridge Marl County" quarry, Upper Freehold Township, Monmouth County, New Jersey.

Horizon: Hornerstown Formation, Rancocas Group.

Biostratigraphy:

Age: Late Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

YPM 948, A) Enlarged anconal view; B) Enlarged, palmar view; C) Palmer view.

YPM 948: Distal end of left humerus.

Note: There is some debate on whether this formation is Maastrichtian, Late Cretaceous or Danian, Early Paleocene.