Buchardt and Simonarson's Tjornes bed 11: Early/Lower Pliocene, Iceland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
Gastropoda indet. Cuvier 1795
Listed as Gastropod
Bivalvia - Arcida - Glycymerididae
Glycymeris glycymeris (Linnaeus 1758)
Listed in text as "Glycimeris glycimeris"; incorrect spelling
Bivalvia - Cardiida - Arcticidae
Arctica islandica (Linnaeus 1767)
Bivalvia - Cardiida - Mactridae
Spisula arcuata (Sowerby 1817)
see common names

Geography
Country:Iceland
Coordinates: 66.0° North, 17.0° West (view map)
Paleocoordinates:66.0° North, 16.9° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Zanclean 10 m.y. bin:Cenozoic 6
Key time interval:Early/Lower Pliocene
Age range of interval:5.33300 - 3.60000 m.y. ago
Stratigraphy
Geological group:Breidavik
Regional order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Thick sequence of alternating terrestrial and marine sediments and interbedded lava flows of Pliocene and Pleistocene age; mostly fossiliferous marine sandstone with intermittent terrestrial or estuarine lignite beds and muddy sandstone
Lithology and environment
Primary lithology: unlithified sandstone
Includes fossils?Y
Lithology description: Sandstone with intermittent lignite beds and muddy sandstone
Environment:transition zone/lower shoreface Tectonic setting:rift
Geology comments: Near intersection of the axial zone of rifting and volcanism and the Tjornes Fracture Zone; described as horst; tectonically active in the Pliocene-Pleistocene
Taphonomy
Modes of preservation:body,original aragonite,replaced with calcite
Size of fossils:macrofossils
Preservation of anatomical detail:good
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:selective quarrying,field collection
Reason for describing collection:general faunal/floral analysis
Collection method comments: Only target species were collected (mainly Arctica islandica/Pygocardia rustica)
Taxonomic list comments:Not representative taxonomic list
Metadata
Also known as:Bardarson's Tjornes bed 11
Database number:34951
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2003-10-21 09:37:16 Last modified:2013-11-25 13:37:23
Access level:group members Released:2004-10-21 09:37:16
Creative Commons license:CC BY
Reference information

Primary reference:

9397.1% 20B. Buchardt and L.A. Simonarson. 2003. Isotope palaeotemperatures from the Tjornes Beds in Iceland; evidence of Pliocene cooling. Palaeogeography, Palaeoclimatology, Palaeoecology 189(1-2):71-95 [A. Miller/A. Hendy/A. Hendy]