Nine species of fossil plants were described based on the new material collected from the Hasandong Formation. They are as follows: Thallites yabei, Onychiopsis elongata, Cladophlebis denticulata, C. shinshuensis, C. (Eboracia ?) lobifolia, C. (Klukia ?) koraiensis, Brachyphyllum japonicum, Elatocladus tennerima, and Taeniopteris ? sp. cf. T. auriculata. The floristic composition of the Hasandong flora is very similar to that of the Nakdong flora. This means that both floras might have flourished under subtropical warm arid climate. This flora contains both the Tetori-type and Ryoseki-type floras. It is considered that the Hasandong flora is a member of the Mixed-type floras that existed in eastern Eurasia during the Late Jurassic to Early Cretaceous time.

Introduction
 Geological Setting andGeological Age
 Material and Method
 Discussion
 Conclusion
 References

• Jong-Heon Kim(Department of Earth Science Education, Kongju National University, Gongju 32588, Republic of Korea)
• Kye-Soo Nam(Daejeon Science Highschool for the Gifted, Daejeon 34142, Republic of Korea) Corresponding author
• Seong-Bok Lee(Department of Earth Science Education, Kongju National University, Gongju 32588, Republic of Korea)
• Yeong-Seok Jeon(Department of Earth Science Education, Kongju National University, Gongju 32588, Republic of Korea)