Deimos Ridge Member, Alexander Island (Cretaceous of Antarctica)

Where: Antarctica (71.8° S, 68.5° W: paleocoordinates 77.7° S, 49.2° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Deimos Ridge Member (Neptune Glacier Formation), Late/Upper Albian (105.3 - 99.6 Ma)

• fauna indicates a late Albian age

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone and lithified mudstone

• shallowing marine shelf
• predominantly sandy marine facies, intercalated mudstones

Size class: macrofossils

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 64244: authorized by Martin Aberhan, entered by Sabine Nürnberg on 05.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Pectinida - Buchiidae
Aucellina sp.
Aucellina sp. Pompeckj 1901 scallop
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin
spatangoid echinoids
 Ichnofossils -
Ophiomorpha sp., Planolites sp., Chondrites sp., Thalassinoides sp., Teichichnus sp.
Ophiomorpha sp. Lundgren 1891
Planolites sp. Nicholson 1873
Chondrites sp. von Sternberg 1833
Thalassinoides sp. Ehrenberg 1944
Teichichnus sp. Seilacher 1955