JUJUYASPIS AND ASSOCIATED TRILOBITES FROM THE MU
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  • journal_title:Journal of Paleontology
  • Contributor:DONG HEE KIM ; DUCK K. CHOI
  • Publisher:Paleontological Society
  • Date:2000-
  • Format:text/html
  • Language:en
  • Identifier:10.1666/0022-3360(2000)074<1031:JAATFT>2.0.CO;2
  • journal_abbrev:Journal of Paleontology
  • issn:0022-3360
  • volume:74
  • issue:6
  • firstpage:1031
  • section:Regular Article
摘要

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.

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