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

Show authors, comments, and common names
unclassified
  -
Pateoris hauerinoides, Scutoloris sp.
Echinoidea
 Camarodonta - Strongylocentrotidae
cf. Strongylocentrotus droebachiensis
Thecostraca
 Balanomorpha - Balanidae
Balanus balanus, Balanus sp., Balanus crenatus
Balanus sp. Da Costa 1778 barnacle
Balanus crenatus Bruguière 1789 barnacle
Ostracoda
 Podocopida -
Robertsonites tuberculatus, ? Finmarchinella angulata, Sarsicytheridea bradii
 Podocopida - Paradoxostomatidae
Paradoxostoma variablie
 Podocopida - Cytheruridae
Cytheropteron sp.
Cytheropteron sp. Sars 1866 ostracod
Sedentaria
 Sabellida - Serpulidae
Serpulidae sp.
Serpulidae sp. Rafinesque 1835
Bivalvia
 Hiatellida - Hiatellidae
Hiatella arctica
Hiatella arctica Linnaeus 1767 clam
 Pholadida - Myidae
"Mya truncata" = Mya (Mya) truncata
"Mya truncata" = Mya (Mya) truncata Linnaeus 1758 softshell clam
 Pectinida - Anomiidae
Heteranomia squamula
Heteranomia squamula Linnaeus 1758 scallop
 Pectinida - Pectinoidae
"Chlamys islandica" = Chlamys (Chlamys) islandica
"Chlamys islandica" = Chlamys (Chlamys) islandica Müller 1776 scallop
Gastropoda
 Neogastropoda - Buccinidae
Buccinum undatum
Buccinum undatum Linnaeus 1758 true whelk
 Sorbeoconcha - Naticidae
"cf. Tectonatica affinis" = Cryptonatica affinis
"cf. Tectonatica affinis" = Cryptonatica affinis Gmelin 1791 moon snail
Tubothalamea
 Miliolida - Miliolidae
Miliolidae sp., Pyrgo williamsoni
Miliolidae sp. Ehrenberg 1839
 Miliolida - Hauerinidae
Quinqueloculina seminulum, Miliolinella subrotunda
 Miliolida - Cornuspiridae
Cornuspira involvens
Foraminifera
 Rotaliacea - Rotaliidae
Oridorsalis sp.
Oridorsalis sp. Anderson 1961
 Rotaliina - Cassidulinidae
Cassidulina reniforme
 Rotalioidea - Elphidiidae
Elphidium excavatum, Elphidium albiumbilicatum, Elphidium hallandense
Nodosariata
 Robertinida - Ceratobuliminidae
Lamarckina haliotidea
Globothalamea
 Rotaliida - Discorbidae
Buccella frigida, Rosalina sp.
Buccella frigida
subspecies caldida
Rosalina sp. d'Orbigny 1826
 Rotaliida - Cibicididae
Cibicides lobatulus
 Rotaliida - Nonionidae
Astrononion gallowayi, Nonionellina labradorica
Foraminifera
  -
Patellina corrugata