20 fossil endocarps of †Cyclocarya nemejcii from the early Miocene, have been found in the Kristina Mine at Hrádek nad Nisou in North Bohemia, the Czech Republic.A review of the early Miocene Mastixioid flora of the Kristina Mine at Hrádek nad Nisou in North Bohemia, The Czech Republic, January 2012 by F. Holý, Z. Kvaček and Vasilis Teodoridis - ACTA MUSEI NATIONALIS PRAGAE Series B – Historia Naturalis • vol. 68 • 2012 • no. 3–4 • pp. 53–118 Described first from the Middle Miocene of Japan †Cyclocarya ezoana is also known from the Middle Miocene Seldovia Point Flora of Alaska. 10 Ma old fossil leaflets that are very similar to it have been found in Tröllatunga-Gautshamar Formation in Iceland. The Icelandic fossils and †C. ezoana are similar to †C. cyclocarpa from the Early Miocene of Germany.Late Cainozoic Floras of Iceland: 15 Million Years of Vegetation and Climate History in the Northern North Atlantic by Thomas Denk, Friðgeir Grimsson, Reinhard Zetter and Leifur A. Símonarson - Springer Science & Business Media, 28. mar. 2011 - 854 pages
