WRI 631, Shallow Bay Formation, Newfoundland - Westrop et. al 1996: Middle Cambrian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Agnostida
- Spinagnostidae
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Hypagnostus parvifrons
(Linnarsson 1869)
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Agnostida
- Agnostidae
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? Kormagnostus copelandi
Westrop et al. 1996
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Newfoundland and Labrador |
| Coordinates: | 49.0° North, 55.5° West (view map) | ||
| Paleocoordinates: | 39.8° South, 67.9° West | ||
| Basis of coordinate: | based on political unit |
Time
| Period: | Cambrian | Epoch: | Miaolingian |
| 10 m.y. bin: | Cambrian 3-4 | ||
| *Period: | Middle Cambrian - Late/Upper Cambrian | *Epoch: | St. David's |
| *International age/stage: | Late/Upper Solvan - Middle - Late/Upper Menevian | *Local age/stage: | Late/Upper Delmar - Middle - Late/Upper Marjuman |
| Key time interval: | Middle Cambrian | Zone: | P. gibbus - P. punctuosus |
| Age range of interval: | 509 - 497 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Cow Head | Formation: | Shallow Bay | Member: | Downes Point (lower) |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Kindle ZOne 3 (preliminary, agnostoid-based evaluation by co-author) JA: correlates with Utah zones (see Fig. 6) that are entirely Middle Cambrian according to Gradstein et al. 2004 | |||||
Lithology and environment
| Primary lithology: | lithified carbonaceous conglomerate |
| Lithology description: coarse grained sequence of often amalgamated carbonate conglomerates. | |
| Environment: | offshore shelf |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Specimens from boulders | |
| Taxonomic list comments:Only includes trilobites and no other macrofossils from the Cow Head Group. | |
Metadata
| Database number: | 9679 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2001-01-11 12:01:00 | Last modified: | 2012-10-28 01:16:56 |
| Access level: | the public | Released: | 2001-01-11 12:01:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 840. | S. R. Westrop, R. Ludvigsen, and C. H. Kindle. 1996. Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland. Journal of Paleontology 70(5):804-829 [M. Patzkowsky/P. Borkow/P. Wagner] |