challenge: Where have 20 fossil endocarps of †Cyclocarya nemejcii from the early Miocene been found?
  
  A. Middle Miocene of Japan
  B. Tröllatunga-Gautshamar Formation in Iceland
  C. Seldovia Point Flora of Alaska
  D. Kristina Mine at Hrádek nad Nisou in North Bohemia, the Czech Republic
  Answer: 