Aythya fossil map
Where fossils of Aythya have been found, shown on the Earth as it looked about 0 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 0 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

| Group | Prehistoric birds |
|---|---|
| Lived | 11.63 million years ago to the present (Tortonian to Holocene) |
| Periods | Neogene, Quaternary |
| Family | Anatidae |
| Named by | Boie 1822 |
| Fossil records | 125 occurrences at 64 locations (PBDB) |
| Found in | United States, Mexico, Italy, Spain, Greece, Russia, New Zealand, Egypt, United Kingdom, China … |
| Rock formations | txn:39624, Bermont, Tamiami, Okeechobee, Gabal Silsila, Gebel Silsila-YCS |
About Aythya
Aythya is a genus of diving ducks, with twelve species currently accepted. The genus was described in 1822 by the German zoologist Friedrich Boie, with the type species being greater scaup. The name Aythya comes from the Ancient Greek word αἴθυιᾰ (aithuia), which referred to an unknown diving-bird.
Text in “About” is quoted from the Wikipedia article Aythya (revision 1379689672), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q214300.