Bollagardar Sample 1 (Pleistocene of Iceland)

Where: Iceland (64.2° N, 22.0° W: paleocoordinates 64.2° N, 22.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• 1 meter above sea level, horizon "3" within glacialmarine deposit (no formation given)

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, pebbly, silty siliciclastic sediments

• glaciomarine deposit, deposited when glacier is in retreat
• Central diamicton unit is interpreted as glaciomarine deposit. The sediment matrix in this macrofossiliferous part of the diamicton contains both macrofossils and microfossils.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: J. Eiriksson, K.L. Knudsen, and L.A. Simonarson. 2004. Lateglacial oceanographic conditions off Southwest Iceland inferred from shallow-marine deposits in Reykjavik and Seltjarnarnes Peninsula. Boreas 33:269-283 [A. Miller/K. Bulinski]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 75055: authorized by Arnold Miller, entered by Kate Bulinski on 17.09.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• appears complete, with molluscs, barnacles, echinoids, forams and ostracods noted.

•Abundance counts determined as follows:

•whole gastropod shells and fragments with the top of the spire preserved were counted as individuals; valves (left or right) and umbonal fragments were counted and their number divided by 2. parietal plates of barnacles were counted and their number divided by 6 when dealing with Balanus and 4 when dealing with Verruca

unclassified
  -
Nodosariata
 Robertinida - Ceratobuliminidae
Globothalamea
 Rotaliida - Discorbidae
Rosalina sp. d'Orbigny 1826
Buccella frigida
subspecies caldida
 Rotaliida - Cibicididae
 Rotaliida - Nonionidae
Foraminifera
 Rotalioidea - Elphidiidae
  -
Tubothalamea
 Miliolida - Cornuspiridae
 Miliolida - Hauerinidae
 Miliolida - Miliolidae
Foraminifera
 Rotaliina - Cassidulinidae
 Rotaliacea - Rotaliidae
Oridorsalis sp. Anderson 1961
Gastropoda
 Neogastropoda - Buccinidae
Buccinum undatum Linnaeus 1758 true whelk
 Sorbeoconcha - Naticidae
"cf. Tectonatica affinis" = Cryptonatica affinis
"cf. Tectonatica affinis" = Cryptonatica affinis Gmelin 1791 moon snail
Bivalvia
 Pectinida - Anomiidae
Heteranomia squamula Linnaeus 1758 scallop
 Pectinida - Pectinoidae
"Chlamys islandica" = Chlamys (Chlamys) islandica
"Chlamys islandica" = Chlamys (Chlamys) islandica Müller 1776 scallop
 Pholadida - Myidae
"Mya truncata" = Mya (Mya) truncata
"Mya truncata" = Mya (Mya) truncata Linnaeus 1758 softshell clam
 Hiatellida - Hiatellidae
Hiatella arctica Linnaeus 1767 clam
Polychaeta
 Sabellida - Serpulidae
Serpulidae sp. Rafinesque 1835
Ostracoda
 Podocopida -
 Podocopida - Cytheruridae
Cytheropteron sp. Sars 1866 ostracod
 Podocopida -
 Podocopida - Paradoxostomatidae
 Podocopida -
Thecostraca
 Balanomorpha - Balanidae
Balanus sp. Da Costa 1778 barnacle
Balanus crenatus Bruguière 1789 barnacle
Echinoidea
 Camarodonta - Strongylocentrotidae