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Per Ahlberg

Per Ahlberg

Professor emeritus

Per Ahlberg

The middle Cambrian Ptychagnostus punctuosus and Goniagnostus nathorsti zones in Vastergotland, Sweden

Author

  • TR Weidner
  • Per Ahlberg
  • Niklas Axheimer
  • ENK Clarkson

Summary, in English

New trilobite discoveries from eight localities in Vastergotland, south-central Sweden, demonstrate that the middle Cambrian Ptychagnostus punctuosus and Goniagnostus nathorsti zones are present in most Lower Palaeozoic outcrop areas of Vastergotland, though as a thin and impersistent conglomeratic limestone, up to approximately 15 cm thick. These zones have not previously been recognised in Vastergotland, except for a thin bed of limestone on Hunneberg.

Department/s

  • Lithosphere and Biosphere Science

Publishing year

2004

Language

English

Pages

39-45

Publication/Series

Bulletin of the Geological Society of Denmark

Volume

51

Issue

1

Document type

Journal article

Publisher

Geological Society of Denmark

Topic

  • Geology

Keywords

  • trilobites
  • Goniagnostus nathorsti zone
  • Ptychagnostus punctuosus zone
  • Middle Cambrian
  • Vastergotland
  • Sweden

Status

Published

ISBN/ISSN/Other

  • ISSN: 0011-6297