Upper Cambrian (Mindyallan) trilobites and stratigraphy of the Kayrunnera Group, western New South Wales

Qizheng Wang Qizheng, K. J. Mills, B. D. Webby, J. H. Shergold

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Nine species of trilobites are recorded from three localities within a restricted stratigraphic interval near the base of the newly defined Kayrunnera Group (previously Kayrunnera Beds) on Kayrunnera station, western New South Wales. These occurrences come from the Boshy Formation of the Kayrunnera Group. The trilobites described include species of Ammagnostus, Meteoraspis, Biaverta, Blackwelderia, Bergeronites, and Placosema. This assemblage is early Late Cambrian (Mindyallan), and most closely referable to the late Mindyallan zone of Glyptagnostus stolidotus. The steeply dipping, weakly cleaved Upper Cambrian-basal Ordovician Kayrunnera Group overlies, with a well-defined angular unconformity, a more deformed tightly folded and strongly cleaved, graded, turbidite sandstone sequence. -from Authors

Original languageEnglish
Pages (from-to)107-118
Number of pages12
JournalBMR Journal of Australian Geology & Geophysics
Volume11
Issue number1
Publication statusPublished - 1989
Externally publishedYes

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