Lithostratigraphy and biostratigraphy of the Mungok Formation (Lower Ordovician), Yongwol, Korea

2000 ◽  
Vol 4 (4) ◽  
pp. 301-311 ◽  
Author(s):  
Dong Hee Kim ◽  
Duck K. Choi
Keyword(s):  
Lower Ordovician ◽  
Mungok Formation

Jujuyaspis and associated trilobites from the Mungok Formation (Lower Ordovician), Yongwol, Korea

2000 ◽  
Vol 74 (6) ◽  
pp. 1031-1042 ◽  
Author(s):  
Dong Hee Kim ◽  
Duck K. Choi
Keyword(s):  
North America ◽  
South America ◽  
North China ◽  
Lower Ordovician ◽  
America South ◽  
Mungok Formation ◽  
First Time

The trilobite genus Jujuyaspis Kobayashi, 1936, an index fossil of earliest Ordovician age, is recorded from the Yosimuraspis Zone of the Mungok Formation (Lower Ordovician) for the first time in Korea. The Yosimuraspis Zone comprises Yosimuraspis vulgaris Kobayashi, 1960; Jujuyaspis sinensis Zhou in Chen et al., 1980; Elkanaspis jilinensis Qian in Chen et al 1985; and pilekid genus and species indeterminate. Closely comparable faunas to the Yosimuraspis Zone are well represented in North China. The occurrence of Jujuyaspis allows the correlation of the Yosimuraspis Zone with the earliest Ordovician faunas of North America, South America, and Scandinavia, and suggests that the Cambrian-Ordovician boundary in Korea be placed at the base of the Yosimuraspis Zone.

The Ibexian Series (Lower Ordovician), a replacement for "Canadian Series" in North American chronostratigraphy

1993 ◽  
Author(s):  
R.J. Ross ◽  
L.F. Hintze ◽  
Raymond L. Ethington ◽  
J.F. Miller ◽  
M.E. Taylor ◽  
...  
Keyword(s):  
North American ◽  
Lower Ordovician
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