Microfossils from the Late Precambrian Draken Conglomerate, Ny Friesland, Svalbard

DSpace/Manakin Repository

Microfossils from the Late Precambrian Draken Conglomerate, Ny Friesland, Svalbard

Citable link to this page

 

 
Title: Microfossils from the Late Precambrian Draken Conglomerate, Ny Friesland, Svalbard
Author: Knoll, Andrew
Citation: Knoll, Andrew H. 1982. Microfossils from the Late Precambrian Draken Conglomerate, Ny Friesland, Svalbard. Journal of Paleontology 56, no. 3: 755-790.
Access Status: Full text of the requested work is not available in DASH at this time (“dark deposit”). For more information on dark deposits, see our FAQ.
Full Text & Related Files:
Abstract: An intraformational "flake" conglomerate within the Late Precambrian (700-800 m.y.) Draken Conglomerate of Ny Friesland, Spitsbergen, contains abundant, well preserved microfossils in silicified shards of microbial mats, as well as in associated silicified clasts of non-stromatolitic mud. Sedimentation apparently took place in a lagoonal environment subjected to occasional storms. Within one local area, three distinct microbial mat associations can be recognized, each dominated by a single filamentous cyanobacterial mat builder occurring in densely interwoven patterns oriented parallel to bedding. One mat association often contains an associate mat building filament, and two of the three associations harbor mat-specific stromatolite dwelling blue-greens. Three taxa, all probable cyanobacteria, apparently lived as microbenthos in the non-stromatolitic mud. Approximately a dozen planktonic taxa have been recognized in this microbiota; these occur as randomly scattered individuals and clusters in all three mat associations and in the carbonate mud. The Draken microbiota provides a case study of the ecological heterogeity and microbial distribution within a single late Precambrian environment, and suggests the importance of paleoecology in analyses of Proterozoic evolution and biostratigraphy. Twenty-eight taxa are recognized of which eight are formally described as new: Salome svalbardensis n. gen. et ap., Synodophycus euthemos n. gen. et sp., Sphaerophycus wilsonii n. sp., Eosynechococcus brevis n. sp., Eosynechococcus depressus n. sp., Gloediniopsis mikros n. sp., Myxococcoides cantabrigiensis n. sp., and Myxococcoides ovata n. sp.
Published Version: http://www.journalofpaleontology.org/
Other Sources: http://www.jstor.org/pss/1304406
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:3117929
Downloads of this work:

Show full Dublin Core record

This item appears in the following Collection(s)

 
 

Search DASH


Advanced Search
 
 

Submitters