Buchardt and Simonarson's Tjornes bed 10 (Pliocene of Iceland)

Also known as Bardarson's Tjornes bed 10

Where: Iceland (66.0° N, 17.0° W: paleocoordinates 66.0° N, 16.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Breidavik Group, Early/Lower Pliocene (5.3 - 3.6 Ma)

• 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; from Mactra biozone

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; unlithified sandstone

• Near intersection of the axial zone of rifting and volcanism and the Tjornes Fracture Zone; described as horst; tectonically active in the Pliocene-Pleistocene
• Sandstone with intermittent lignite beds and muddy sandstone

Size class: macrofossils

Preservation: original aragonite, replaced with calcite

Collection methods: quarrying,

• Only target species were collected (mainly Arctica islandica/Pygocardia rustica)

Primary reference: B. 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 34950: authorized by Austin Hendy, entered by Austin Hendy on 21.10.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Not representative taxonomic list
Bivalvia
 Cardiida - Arcticidae
Arctica islandica Linnaeus 1767 clam
 Cardiida - Mactridae
Spisula arcuata Sowerby 1817 clam