C.85.3, southern Churchill Mountains: Atdabanian, Antarctica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Porifera indet. Grant 1836
The material consists of archaeocyaths.
Trilobita
Trilobita indet. Walch 1771
unclassified
Mollusca indet. Linnaeus 1758
Helcionelloida - Helcionellida - Helcionellidae
Marocella mira Geyer 1986
see common names

Geography
Country:Antarctica
Coordinates: 82.2° South, 160.3° West (view map)
Paleocoordinates:1.3° South, 149.4° West
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Series 2
Stage: Stage 3 10 m.y. bin: Cambrian 2
*Period:Early/Lower Cambrian *Epoch:Middle Caerfai
*Local age/stage:Middle - Late/Upper Atdabanian - Lenian
Key time interval: Atdabanian
Age range of interval: 521 - 515.6 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Byrd Formation:Shackleton Limestone
Stratigraphic resolution:formation
Stratigraphy comments: Scree, ice, and snow cover prevent measurements and thorough collecting for the stratigraphic collection.



Was Atdabanian - Lenian, but restricted to Atdabanian in:
Stump et al. (2006, Tectonic Model for Development of the Byrd Glacier Discontinuity and Surrounding Regions of the Transantarctic Mountains during the Neoproterozoic — Early Paleozoic pp. 181 - 190 in Antarctica: Contributions to Global Earth Sciences (D.K Fütterer, D. Damaske, G. Kleinschmidt, H. Miller & F. Tessensohn, eds.)

Lithology and environment
Primary lithology: lithified "limestone"
Environment:marine indet.
Taphonomy
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:taxonomic analysis
Collection method comments: The antarctic material was recovered during the Austral summer 1985-1986.
Taxonomic list comments:Various problematic shells are not included in the taxonomic list.
Metadata
Database number:7821
Authorizer:M. Patzkowsky Enterer:A. Krug, P. Borkow
Modifier:P. Wagner Research group:marine invertebrate
Created:2000-06-03 21:40:21 Last modified:2010-01-25 21:37:13
Access level:the public Released:2000-06-03 21:40:21
Creative Commons license:CC BY
Reference information

Primary reference:
500. K. R. Evans. 1992. Marocella: Antarctic specimens of an enigmatic Cambrian animal. Journal of Paleontology 66(4):558-562 [M. Patzkowsky/P. Borkow/J. Alroy]