| Sinanas Temporal range: Miocene  | |
|---|---|
| Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Aves | 
| Order: | Anseriformes | 
| Family: | Anatidae | 
| Genus: | † Sinanas | 
| Species: | †S. diatomas | 
| Binomial name | |
| †Sinanas diatomas Yeh, 1980 | |
Sinanas is a genus of prehistoric duck that lived during the middle Miocene. [1] The single known species is Sinanas diatomas. Fossils of the species have been recovered from the Shandong Province of China. [2] Taxonomists are uncertain as to its affinities to modern waterfowl. [2] [3]