Jamna
In Depth Jamna is a genus of passeriform bird that lived in Eastern Europe during the Oligocene. Further Reading - A new passerine bird from the early Oligocene of Poland. - Journal of Ornithology 152 (4): 1045–1053. - Zbigniew M. Bocheński, Teresa Tomek, Małgorzata Bujoczek & Krzysztof Wertz - 2011.