White Head Fm, Perce, U. Llandovery, 69L10 - Patzkowsky: Llandovery, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
informal orthacid indet.
informal dalmanellacid indet.
plectambonitacids indet.
atrypacid n. gen. indet.
Strophomenata - Orthotetida - Triplesiidae
Oxoplecia sp. Wilson 1913
Rhynchonellata - Atrypida - Atrypidae
Atrypa sp. Dalman 1828
see common names

Geography
Country:Canada State/province:Quebec
Coordinates: 48.5° North, 64.2° West (view map)
Paleocoordinates:22.6° South, 35.5° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Silurian Epoch:Llandovery
10 m.y. bin:Silurian 1
*Period:Early/Lower Silurian *Epoch:Late/Upper Llandovery
Key time interval:Llandovery
Age range of interval:443.80000 - 433.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:White Head Member:unit 9
Stratigraphic resolution:group of beds
Stratigraphy comments: White Head Formation consists of 9 numbered units. This collection is from unit 9, the top of the formation. Considered Upper Llandovery C5 - C6.
Lithology and environment
Primary lithology: lithified conglomeratic "limestone"
Secondary lithology: lithified "limestone"
Lithology description: Unit begins with from 20-40 meters of limestone conglomerate, with associated calcarenites, sandy limestones, and sublithographic limestone. Major part of unit consists of shaly limestone to thick bedded argillaceous limestone, with interlensed calcarenite.
Environment:carbonate indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:Brachiopods only.
Metadata
Database number:12298
Authorizer:M. Patzkowsky Enterer:A. Krug
Modifier:A. Krug Research group:marine invertebrate
Created:2001-10-19 07:04:34 Last modified:2004-06-03 15:40:50
Access level:the public Released:2001-10-19 07:04:34
Creative Commons license:CC BY
Reference information

Primary reference:
4171. P. M. Sheehan and P.J. Lesperance. 1981. Brachiopods from the White Head Formation (Late Ordovician-Early Silurian) of the Perce region, Quebec, Canada. IUGS Subcommission on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group, Field meeting, Anticosti-Gaspe, Quebec, 1981 2:1-321 [M. Patzkowsky/A. Krug/A. Krug]