White Head Fm, Perce, Ashgill, 62F9 - Patzkowsky: Ashgill, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Orthacidae indet.
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Dalmanellacidae indet.
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Strophomenacidae indet.
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Rhynchonellata
- Atrypida
- Anazygidae
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Catazyga carteri
(Cooper and Kindle 1936)
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| original and current combination Catazyga cartieri | ||||||||||
| C&K | ||||||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella gigantea
Schuchert and Cooper 1930
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| C | ||||||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina percensis
Cooper and Kindle 1936
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| C&K | ||||||||||
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Leptaena spp.
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Strophomenata
- Orthotetida
- Triplesiidae
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? Bicuspina sp.
Havlicek 1950
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Oxoplecia sp.
Wilson 1913
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Quebec |
| Coordinates: | 48.5° North, 64.2° West (view map) | ||
| Paleocoordinates: | 24.0° South, 39.2° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 5 | ||
| *Period: | Late/Upper Ordovician | *Epoch: | Ashgill - Ashgill |
| Key time interval: | Ashgill | ||
| Age range of interval: | 449.60000 - 443.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | White Head | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: White Head Fm is divided into 9 numbered units. This collection is from unit 4, with unit 1 being at the base of the formation. | |||||
Lithology and environment
| Primary lithology: | red or brown lithified "limestone" |
| Secondary lithology: | lithified silty,calcareous "shale" |
| Lithology description: Predominantly limestone, in well defined beds 2-10 cm thick, with interbeds to about 4 cm of silty calcareous shale. Limestones are brownish, and typically are finely micritic, but not uncommonly are finely sandy or coarsely micritic. | |
| Environment: | deep subtidal 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: | 11938 | ||
| Authorizer: | M. Patzkowsky | Enterer: | A. Krug |
| Modifier: | A. Krug | Research group: | marine invertebrate |
| Created: | 2001-09-19 11:10:57 | Last modified: | 2004-06-03 14:34:45 |
| Access level: | the public | Released: | 2001-09-19 11:10:57 |
| 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] |