Polarornis is a genus of prehistoric bird, either a possible member of the Vegaviidae or Aequornithes. It contains a single species Polarornis gregorii, known from incomplete remains of one individual found on Seymour Island, Antarctica, in rocks which are dated to the Late Cretaceous (López de Bertodano Formation, about 66 Ma).
極地鳥屬（學名：Polarornis）是（Anserimorphae）已滅絕的一個屬，屬維加鳥科，僅有Polarornis gregorii一種，其化石出土於南極洲西摩島，年代為距今約6600萬年的馬斯垂克期。極地鳥最早於1988年由古生物學家發現，但直到2002年才正式描述發表，不過他在1997年便在其著作The Rise of Birds中使用了本屬的學名。
Abstract from DBpedia / Wikipedia · CC BY-SA
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).