Genus: Neogaeornis LAMBRECHT, 1929
Etymology: Greek, neos, “new,” Greek, gaia, “earth” and Greek, ornis, “bird”: “New world Bird”.

Species: wetzeli LAMBRECHT, 1929
Etymology: In honor of W. Wetzel, who collected the specimen.

Holotype: GPMK 123

Locality: Cliff at west end of Bahia San Vicente, on the southern point of Peninsula Tumbes, Concepcion Province, South Chile.

Horizon: Quiriquina Formation, Arauco Group.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Right tarsometarsus.

Referred material:

Locality: 36'46"S, 73'15"W, in the area known as Vegas de Gualpen on the Bahia San Vicente, Cerro Del Conejo (also known as Cerro de las Pulgas or Cerro del amaron), Chile.

Horizon: Quiriquina Formation, Arauco Group.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Tarsometatarsus.