Weltrichia sp. from the Late Triassic Amisan Formation of Nampo Group, Korea

다국어 초록 (Multilingual Abstract)

Since 1984, the author has been studying the Daedong flora and has collected a large number of fossil plants from the Amisan Formation of Nampo Group distributed in Chungnam Coal-Field. One of the fossil plants was bennettitalean male flower, which was collected in 1986. The author described it as Weltrichia sp. The occurrence of Weltrichia sp. is the first record in the Early Mesozoic Daedong flora of Korea.

참고문헌 (Reference)

1 이신우, "보령지역 충남 분지 중생대 초기 하조층의 퇴적상 분석" 한국지구과학회 31 (31): 18-35, 2010

2 김종헌, "남포층군 아미산층에서 산출된 Neocalamites carrerei의 기관화석" 한국지구과학회 29 (29): 466-473, 2008

3 Kobayashi, T., "Upper Triassic esterids in Thailand and the conchostracan development in Asia in the Mesozoic Era" 16 : 57-90, 1975

4 Kim, J. H., "Three new Equisetites species found from the Upper Triassic Amisan Formation, Nampo Group, Korea" 6 : 91-99, 1990

5 Harris, T. M., "The Yorkshire Jurassic flora"

6 Oishi, S., "The Mesozoic floras of Japan" 5 (5): 1-48, 1940

7 Kim, J. H., "Sphenophyllum sp. (Sphenophyllales) newly found from Upper Triassic Baegunsa Formation, Nampo Group, Korea" 15 : 93-96, 1989

8 Kawasaki, S., "Some older Mesozoic plants in Korea" 4 : 1-71, 1925

9 Kawasaki, S., "Second addition to the older Mesozoic plants in Korea" 4 : 1-16, 1939

10 McLoughlin, S., "Ptilophyllum muelleri (Ettingshan) Comb. nov. from the Oligocene of Australia: last of the Bennettitales?" 172 : 574-585, 2011

11 Taylor, T. N., "Paleobotany. The biology and evolution of fossil plants" Elsevier 1230-, 2009

12 Stewart, W.N., "Paleobotany and the evolution of plants" Cambridge University 521-, 1993

13 Barboni, R., "New “flower” and leaves of Bennettitales from southern Brazil and their implication in the age of the Lower Mesozoic deposits" 50 : 14-32, 2013

14 Kimura, T., "New taxa in the Late Triassic Daedong flora, South Korea. Part 2" 155 : 141-158, 1989

15 Kimura, T., "New taxa in the Late Triassic Daedong flora, South Korea. Part 1" 152 : 603-624, 1988

16 Kim, J. H., "New fossil plants from the Nampo Group (Lower Mesozoic), Korea" 5 : 173-180, 2001

17 Kimura, T., "Neocalamites carrerei(Zeiller)Halle(Equisetales), found in situ from the Daedong Supergroup, Korea" 58 : 156-159, 1982

18 Kim, J.H., "Lobatannularia nampoensis (Kawasaki) Kawasaki from the Upper Triassic Baegunsa Formation, Nampo Group, Korea" 64 (64): 221-224, 1988

19 Kimura, T., "Late Jurassic plants from the Oginohama Formation, Oshika Group in the Outer Zone of Northeast Japan (II)" 15 : 53-70, 1989

20 Wieland, G. R., "La flora Liásica de la Mixteca Alta" 31 : 1-165, 1914

21 에가와코우스케, "K-Ar dating of illites for time constraint on tectonic burial metamorphism of the Jurassic Nampo Group (West Korea)" 한국지질과학협의회 15 (15): 131-135, 2011

22 Delevoryas, T, "Investigation of North American cycadeoids: williamsonian cones from the Jurassic of Oaxaca, Mexico" 15 : 27-42, 1973

23 Delevoryas, T., "Investigation of North American cycadeoids: Weltrichia and Williamsonia from the Jurassic of Oaxaca, Mexico" 78 : 177-182, 1991

24 McLoughlin, S, "Harvesting the extince Bennettitales" 19 : 16-20, 2009

25 Reedman, A. J., "Geology of Korea" Korea Institute of Energy and Resources 139-, 1975

26 Shimamura, S., "Geological Atlas of Chosen (1:50,000), Cheongyang, Daecheon, Buyeo and Nampo sheets and the explanatory text"

27 Kimura, T, "General review on the Daedong flora, Korea" 36 : 201-236, 1984

28 Suh, H.G, "Four sheets of geological maps of the Seongju area (1:10,000) and the explanatory text" Korea Institute of Energy Resources 1980

29 Kim, J. H., "Fossil plants from the Lower Mesozoic Daedong Supergroup in the Korean Peninsula and their phytogeographical and paleogeographical significance in East and Southeast Asia" Kyushu University 1993

30 Kim, K. S., "Coniferous fossil woods from the Jogyeri Formation (Upper Triassic) of the Nampo Group, Korea" 26 : 253-265, 2005

31 Watson, J., "Bennettitales of the English Wealden" Palaeontographical Society 228-, 1992

32 Kawasaki, S., "Addition to the older Mesozoic plants in Korea" 4 : 1-11, 1926

33 Li, N., "A new species of Weltrichia Braun in North China with a special bennettitalea male reproductive organ" 46 : 1269-1275, 2004

34 Pineda, A. S., "A new species of Weltrichia (Bennettitales) from the Middle Jurassic of the Tecomazuchil Formation (Ozxaca, Mexico)" 44 : 519-525, 2011

35 Jong Heon Kim, "A Revision of Mesozoic Equisetales Annuriopsis bunkeiensis Kimura et Kim from the Amisan Formation ofNampo Group, Korea" 한국지구과학회 25 (25): 32-38, 2004

36 김정현, "A New Species of Leptostrobus from the Upper Triassic Amisan Formatin of the Nampo Group in Korea" 한국지구과학회 23 (23): 30-37, 2002