''Shiriyanetta hasegawai'' is an extinct species of seaduck from the Pleistocene of

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. It was flightless, similar to the also extinct ''

Chendytes ''Chendytes lawi'' is an extinct, goose-sized flightless marine duck, once common on the California coast, the California Channel Islands, and possibly southern Oregon. It lived in the Pleistocene and survived into the Holocene. It appears to ha ...

'' from the opposite side of the Pacific.

References

Merginae Extinct flightless birds Late Quaternary prehistoric birds Extinct animals of Japan Fossil taxa described in 2015 {{paleo-bird-stub