South Bight (Pleistocene of the United States)

Also known as Amchitka Island

Where: Alaska (51.5° N, 179.0° E: paleocoordinates 51.5° N, 179.0° E)

• coordinate estimated from map

When: South Bight II Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• member-level stratigraphic resolution

Environment/lithology: foreshore; unlithified sandstone and unlithified conglomerate

• loose pebbly sand that contains random cobbles and boulders and abundant shell material, including echinoid plates and spines and Foraminifera

Size classes: macrofossils, mesofossils, microfossils

Preservation: original phosphate

Primary reference: L. M. Gard, G. E. Lewis, and F. C. Whitmore. 1972. Steller's Sea Cow in Pleistocene interglacial beach deposits on Amchitka, Aleutian Islands. Geological Society of America Bulletin 83:867-870 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52243: authorized by Mark Uhen, entered by Mark Uhen on 01.08.2005, edited by Mihaela Krause

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Foraminifera
 Foraminifera -
 Lituolacea - Ataxophragmiidae
Karreriella baccata3
subspecies alaskensis
 Globigerinoidea - Globigerinidae
 Globigerinoidea - Globorotaliidae
"Globigerina pachyderma" = Neogloboquadrina pachyderma3
"Globigerina pachyderma" = Neogloboquadrina pachyderma3 Ehrenberg 1861
Tubothalamea
 Miliolida - Hauerinidae
 Miliolida - Miliolidae
Foraminifera
 Nodosariacea - Ellipsolagenidae
 Rotaliina - Bolivinidae
 Rotaliacea - Rotaliidae
 Rotaliina - Cassidulinidae
 Rotalioidea - Elphidiidae
 Rotalioidea - Elphidiellidae
Nodosariata
 Polymorphinida - Polymorphinidae
Globothalamea
 Rotaliida - Cibicididae
 Rotaliida - Rosalinidae
 Rotaliida - Discorbidae
unclassified
  -
Mollusca indet.1 Linnaeus 1758
Gastropoda
  -
Gastropoda indet.3 Cuvier 1795 snail
microscopic
Bivalvia
 Pectinida - Pectinoidae
"Chlamys (Chlamys) hanaishiensis" = Chlamys (Chlamys) albida2 Arnold 1906 scallop
Subspecies "Chlamys (Chlamys) hanaishiensis amchitkana"
Chlamys (Chlamys) coatsi2 MacNeil 1967 scallop
Chlamys (Chlamys) islandica2 Müller 1776 scallop
Chlamys (Chlamys) islandica powersi
Deuteropoda
  -
Ostracoda indet.1 Latreille 1802 ostracod
Echinoidea
  -
Echinoidea indet.3 Leske 1778 sea urchin
Mammalia
 Placentalia -
Cetacea indet.1 Brisson 1762 whale
 Carnivora - Odobenidae
Odobenus rosmarus1 Linnaeus 1758 walrus
 Carnivora - Otariidae
"Eumetopias jubata" = Eumetopias jubatus1
"Eumetopias jubata" = Eumetopias jubatus1 Schreber 1776 Steller sea lion
 Sirenia - Dugongidae
Hydrodamalis gigas1 Zimmermann 1780 Steller's sea cow