Mars Glacier Member, Alexander Island: Late Albian, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Vanikoridae
Bivalvia
small modiolid/mytiloid
Bivalvia - Hiatellida - Hiatellidae
Panopea sp. (Menard 1807)
Bivalvia
Heterodonta indet. Neumayr 1884
Bivalvia - Trigoniida - Trigoniidae
Trigoniidae sp. Lamarck 1819
trigoniids
Pacitrigonia sp. Marwick 1932
Bivalvia - Trigoniida - Laevitrigoniidae
Bivalvia - Trigoniida - Megatrigoniidae
Pisotrigonia sp. van Hoepen 1929
Bivalvia - Arcida - Cucullaeidae
Cucullaeidae indet. Stewart 1930
thick-shelled cucullaeid
Cephalopoda - Ammonoidea
heteromorph ammonite
Cephalopoda - Belemnitida - Dimitobelidae
Dimitobelus sp. Whitehouse 1925
see common names

Geography
Country:Antarctica
Coordinates: 71.8° South, 68.5° West (view map)
Paleocoordinates:67.1° South, 31.2° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Albian 10 m.y. bin: Cretaceous 4
Key time interval: Late Albian
Age range of interval: 106.3 - 100.5 m.y. ago
Stratigraphy
Geological group:Fossil Bluff Formation:Neptune Glacier Member:Mars Glacier
Stratigraphic resolution:bed
Stratigraphy comments: fauna indicates a late Albian age; single horizon
Lithology and environment
Primary lithology: lithified sandstone
Lithology description: marine, sand dominated facies, biotic sequence is controlled by the transgression
Environment:transition zone/lower shoreface Tectonic setting:forearc basin
Glacial or sequence phase:transgressive
Geology comments: deepening marine shelf
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:64245
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2006-09-05 04:47:30 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-09-05 04:47:30
Creative Commons license:CC0
Reference information

Primary reference:
18542. S. R. A. Kelly and A. C. M. Moncrieff. 1992. Marine molluscan constraints on the age of Cretaceous fossil forests of Alexander Island, Antarctica. Geological Magazine 129(6):771-778 [M. Aberhan/S. Nurnberg]