Amateur collectors in Japan discover country's first
and oldest fossil diving bird, Perot Museum of Nature
and Science, August 8, 2017
http://www.perotmuseum.org/about-the-perot/newsroom/news-releases/2017/08/chupkaornis-keraorum.html
https://www.sciencedaily.com/releases/2017/08/170808145449.htm
"Two brothers from a small town in Hokkaido, Japan,
made the discovery of their lives -- the first and
oldest fossil bird ever identified in their country.
Identified as a new species, it has been named
Chupkaornis keraorum."
The paper is:
Tanaka, T., Y. Kobayashi, K. Kurihara, A. R. Fiorillo, and
M. Kano. 2017. The oldest Asian hesperornithiform from
the Upper Cretaceous of Japan, and the phylogenetic
reassessment of Hesperornithiformes. Journal of
Systematic Palaeontology, 2017; 1
DOI: 10.1080/14772019.2017.1341960
http://www.perotmuseum.org/media/files/Newsroom/2017/8.8.2017_Tanaka_et_al_2017_Chupkaornis.pdf
Yours,
Paul H.