Aves - Anseriformes - Anatidae
Alternative spellings: Cygnini, Cygninini
Parent taxon: Anserinae according to J. Gonzalez et al. 2009
See also Brodkorb 1964, del Hoyo et al. 2014, Hay 1930, Howard 1972, Kurochkin 1968, Lambrecht 1933, Livezey and Martin 1988, Louchart et al. 2008, Matsuoka et al. 2001, Wetmore 1940, Wetmore 1956 and Worthy and Nguyen 2020
Sister taxa: Anserini, Anserobranta, Cereopseini, Chenornis, Cygnopterus, Eremochen, Malacorhynchini, Stictonettini
Subtaxa: Afrocygnus Annakacygna Cygnanser Cygnus Megalodytes
Distribution:
• Quaternary of Australia (1 collection), Canada (4: Northwest Territories, Nunavut), China (1), Finland (3), France (2), Greece (2), Italy (2), Jordan (1), Malta (1), Mexico (1), New Zealand (11), Portugal (1), the Russian Federation (1), Spain (1), the United Kingdom (3), United States (18: Alabama, Alaska, California, Florida, Georgia, Illinois, Montana, Ohio, Oregon, Virginia)
• Pliocene of Australia (2), the Russian Federation (1), Ukraine (1), United States (5: Idaho, North Carolina, Oregon)
• Hemphillian of United States (1: Florida)
• Miocene of Belgium (1), Canada (1: Northwest Territories), Chad (2), Japan (2), Moldova (1), United States (1: California)
Total: 71 collections including 77 occurrences