Per Ahlberg
Professor emeritus
Silurian graptolite biostratigraphy of the Rostanga-1 drill core, Scania - a standard for southern Scandinavia
Author
Summary, in English
The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by the presence of a Metabolograptus persculptus Biozone fauna. The Akidograptus ascensus, Parakidograptus acuminatus, Cystograptus vesiculosus and Monograptus revolutus biozones can be differentiated in the Rhuddanian. Following a considerable gap (Demirastrites triangulatus Biozone to a level within the Pribylograptus leptotheca Biozone), the succession resumes. The Aeronian also includes the Lituigraptus convolutus and Stimulograptus sedgwickii biozones. The Stimulograptus halli Biozone appears to be missing, but the Telychian Spirograptus guerichi to Streptograptus crispus biozones have been recognized.
Department/s
- Lithosphere and Biosphere Science
Publishing year
2014
Language
English
Pages
175-178
Publication/Series
GFF
Volume
136
Issue
1
Document type
Journal article
Publisher
Taylor & Francis
Topic
- Geology
Keywords
- Graptolites
- biostratigraphy
- Ordovician
- Silurian
- Scania
- Sweden
Status
Published
ISBN/ISSN/Other
- ISSN: 2000-0863