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http://dx.doi.org/10.5467/JKESS.2008.29.6.466

Organ Fossils of Neocalamites carrerei from the Amisan Formation of the Nampo Group, Korea  

Kim, Jong-Heon (Department of Earth Science Education, Kongju National University)
Roh, Heon-Sun (Department of Earth Science Education, Kongju National University)
Publication Information
Journal of the Korean earth science society / v.29, no.6, 2008 , pp. 466-473 More about this Journal
Abstract
This study deals with the morphological characteristics and structure of organ fossils of Neocalamites carrerei such as rhizomes, aerial leafy stems, and cones collected in situ from the Amisan Formation of Nampo Group. Judging from the size of some extant Equisetum and paleoclimate of Daedong flora, it is considered that the size of Neocalamites carrerei was probably very large. The cone of Neocalamites takahashii (Kon'no) is closely associated with the leaves of Neocalamites carrerei. It indicates that two organ fossils mentioned above probably belong to the same species. Comparing with very abundant occurrence of aerial leafy stems and rhizomes in the Amisan Formation, cones are very rare. This fact implies that Neocalamites reproduce not only by spore reproduction, but also by asexual reproduction. Neocalamites largely differ in the leaf form and size from Equisetum.
Keywords
Amisan Formation; Neocalamites; rhizomes; aerial leafy stems; cone;
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Times Cited By KSCI : 1  (Citation Analysis)
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