Ostøya, Frognerkilen Fm.: Keila - Oandu, Norway

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta sp. Salter 1852
Soot-Ryen and Soot-Ryen 1960
Rostroconchia - Ribeirioida - Technophoridae
Technophorus stoermeri n. sp. Soot-Ryen 1960
synonym of Myocaris sharpei
Trilobita - Asaphida - Asaphidae
Asaphus (Neoasaphus) ludibundus (Törnquist 1884)
Jaanusson 1953
see common names

Geography
Country:Norway State/province:Baerum
Coordinates: 59.9° North, 10.6° East (view map)
Paleocoordinates:32.1° South, 9.8° West
Basis of coordinate:estimated from map
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Key time interval:Keila - Oandu Graptolite zone: Diplograptus foliaceus
Age range of interval:453.90000 - 452.00000 m.y. ago
Stratigraphy
Formation:Frognerkilen
Stratigraphic resolution:formation
Stratigraphy comments: 4bß
Lithology and environment
Primary lithology: "limestone"
Secondary lithology: "shale"
Includes fossils?Y
Lithology description: In the type area, the base of this formation marks an abrupt change from a shale dominated succession to rubbly limestones up to 10cm thick passing upwards into nodular limestones (up to 10cm) and shales (up to 35cm). The rubbly limestone is not developed in Ringerike. The uppermost 2 3m of the formation comprises bedded limestones (5 10cm) and shales (5 30cm)
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Metadata
Database number:164501
Authorizer:P. Wagner, B. Kröger Enterer:P. Wagner, B. Kröger
Modifier:B. Kröger
Created:2014-12-04 09:38:17 Last modified:2015-02-13 03:18:43
Access level:the public Released:2014-12-04 09:38:17
Creative Commons license:CC BY
Reference information

Primary reference:
16342. H. Soot-Ryen. 1960. The Middle Ordovician of the Oslo region, Norway: 12, Notostraca and Conchastraca. Norsk Geologisk Tidsskrift 40(2):123-131 [P. Wagner/P. Wagner]

Secondary references:

54236 V. Jaanusson. 1953. Untersuchungen über baltoskandische Asaphiden I Revision der mittelordovizischen Asaphiden des Siljan-Gebietes in Dalarna. Arkiv för Mineralogie och Geologie 1(14):377-464 [B. Kröger/B. Kröger]
26012 H. Soot-Ryen and T. Soot-Ryen. 1960. The Middle Ordovician of the Oslo region, Norway: 11, Pelecypoda. Norsk Geologisk Tidsskrift 40(2):81-122 [A. Hendy/A. Hendy]