New occurrence of Triassic gymnosperm wood at the Ricker Hills, southern Victoria Land, Antarctica
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- New occurrence of Triassic gymnosperm wood at the Ricker Hills, southern Victoria Land, Antarctica
- Other Titles
- 남극 빅토리아랜드 리커힐에서 산출되는 삼첩기 gymnosperm 연구
Lee, Jong Ik
- Agathoxylon; Beacon Supergroup; Corystospermales; Fossil wood; Kykloxylon
- Issue Date
- 오창환, et al. 2019. "New occurrence of Triassic gymnosperm wood at the Ricker Hills, southern Victoria Land, Antarctica". REVIEW OF PALAEOBOTANY AND PALYNOLOGY, 261(1): 95-102.
- During the 2016 Antarctic summer season, the fourth Korea Antarctic Geological Expedition (KAGEX IV) investigated
the Ricker Hills in southern Victoria Land, Antarctica and collected 33 specimens of fossilwood froman outcrop
of Triassic Beacon sandstone in a small basin, Ricker Hills area. Based on anatomical features, four specimens
can be identified as belonging to the seed-fern wood Kykloxylon sp. (Corystospermales). A specimen is identified
as Agathoxylon sp. and it is the first report of the genus fromthe Triassic deposits in Victoria Land, Antarctica.We
are able to reconfirm that corystosperm trees were a dominant component of the Triassic forest vegetation in
Antarctica,with minor occurrences of Agathoxylon trees of yet uncertain affinities from those results. In addition,
the new occurrence of Agathoxylon at the Ricker Hills also shows us that there is still a shortage of fossil wood
studies in Victoria Land.
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