Genus: Vegavis CLARKE, TAMBUSSI, NORIEGA, ERICKSON & KETCHAM, 2005
Etymology: In reference to the Vega Island province,West Antarctica, Antarctica and Latin, avis, "bird."

Species: iaai CLARKE, TAMBUSSI, NORIEGA, ERICKSON & KETCHAM, 2005
Etymology: In reference to the initials of the Instituto Antartico Argentino (IAA) expedition that collected the specimen.
= PRESBYORNITHIDAE incertae sedis NORIEGA & TAMBUSSI, 1995

Holotype: MLP 93-I-3-1 (-2 also?)

Locality: Locality VEG9303 of the 1992/1992 IAA expedition, Cape Lambe, Vega Island, West Antarctica, Antarctica.

Horizon: Unit B of the Upper Cretaceous marine succession tentatively referred to the Lopez de Bertodano Formation.

Biostratigraphy:

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

Material: A disarticulated partial postcranial skeleton in 2 halves of a concretion; 5 thoracic vertebrae, 2 cervical vertebrae, left scapula, right ulna, all pelvic bones, right and left fubulae and left? tarsometatarsal shaft, right humerus, proximal left humerus, right coracoid, femora, left tibiotarsus, distal radius, sacrum, distal left tarsometatarsus, proximal right tarsometatarsus and more than 6 dorsal ribs.

Referred material:

CLARKE, CHATTERJEE, LI, RIEDE, AGNOLIN, GOLLER, ISSAI, MARTINIONI, MUSSEL, & NOVAS, 2016

Locality: Vega Island, West Antarctica.

Horizon: Unit B of the Upper Cretaceous marine succession tentatively referred to the Lopez de Bertodano Formation.

Biostratigraphy:

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

Material:

MACN-PV 19.748: Partial skeleton with a three-dimensionally preserved syrinx.

= cf. Vegavis iaai de SOUZA, BULAK, SOARES, SAYAO, WEINSCHUTZ, BATEZELLI & KELLNER, 2023

Locality: Sandwich Bluff, Cape Lamb, Vega Island, West Antarctica.

Horizon: Lopez de Bertodano Formation.

Biostratigraphy:

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

Material:

MN 7832-V: 3 fused synsacral vertebrae lacking the corpus vertebrae.