Abstract
이 논문은 우리나라의 중생대층과 신생대층에서 기록된 6속 22종의 은행류 화석을 최근까지 확립된 고생물학적 지식에 기초하여 재검토하고, 종의 다양성과 엽형 대해 논의하였다. 연구결과 은행류 화석은 중생대에서 4속 8종, 신생대에서 1속 1종으로 각각 재분류되었다. 중생대형 은행류의 엽신은 대부분 가는 열편으로 갈라져 있지만, 신생대형은 부채꼴 모양의 단엽형으로 나타난다. This paper conducted the general review of the 6 genera and 22 species of ginkgoaleans known from the Mesozoic and Cenozoic strata of Korea based on the recent palaeontological knowledge. Species diversity and leaf form of the Mesozoic and Cenozoic ginkgoaleans were discussed. Results showed that 4 genera 8 species from the Mesozoic strata and 1 genus and 1 species from the Cenozoic strata were recognized respectively. Laminae of the Mesozoic type of ginkgoaleans were mostly split into narrow lobes, but those of the Cenozoic type were characterized by their fan-shaped simple leaf.
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