Ellipsocephaloides silvestris Subzone assemblage: Sunwaptan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita
- Ellipsocephaloididae
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Ellipsocephaloides silvestris
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Ellipsocephaloides monsensis
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Trilobita
- Ptychopariida
- Elviniidae
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Chariocephalus whitfieldi
Hall 1863
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Drumaspis idahoensis
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Trilobita
- Ptychopariida
- Kingstoniidae
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Pugionicauda paradoxa
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Trilobita
- Ptychopariida
- Catillicephalidae
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? Triarthropsis sp.
Ulrich 1931
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Trilobita
- Asaphida
- Ptychaspididae
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Idiomesus granti
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Keithiella cf. depressa
Rasetti 1944
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Ptychaspis sp.
Hall 1863
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Ptychaspis cf. monsensis
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Trilobita
- Asaphida
- Dikelocephalidae
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Prosaukia misa
(Owen 1852)
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Stigmaspis albertensis
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Monocheilus orestes
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Trilobita
- Olenida
- Parabolinoididae
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Croixana ambigua
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Croixana inflata
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? Minkella sp.
Lochmann and Hu 1959
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Minkella cf. modesta
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Trilobita
- Olenida
- Idahoiidae
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Wilbernia pero
(Walcott 1890)
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Agnostida
- Diplagnostidae
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Pseudagnostus josepha
(Hall 1863)
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recombined as Pseudagnostus josephus | |||||||
see common names |
Geography
Country: | Canada | State/province: | Alberta |
Coordinates: | 51.5° North, 116.2° West (view map) | ||
Paleocoordinates: | 2.8° South, 75.6° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | local area |
Time
Period: | Cambrian | Epoch: | Furongian |
10 m.y. bin: | Cambrian 4 | ||
Key time interval: | Sunwaptan | ||
Age range of interval: | 498.50000 - 485.40000 m.y. ago |
Stratigraphy
Formation: | Bison Creek | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: approximately 80m above the base of the Bison Creek Formation; most fossiliferous in unit |
Lithology and environment
Primary lithology: | lithified calcareous "shale" | ||
Secondary lithology: | intraclastic,shelly/skeletal lithified grainstone | ||
Includes fossils? | Y | ||
Lithology description: at type section Bison Creek consists of 177m of calcareous shales and mudstones, calcarenites, intrarudites, and algal buildups | |||
Environment: | shallow subtidal indet. | Tectonic setting: | passive margin |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 54091 | ||
Authorizer: | S. Peters | Enterer: | S. Peters |
Modifier: | S. Peters | Research group: | marine invertebrate |
Created: | 2005-09-22 14:53:42 | Last modified: | 2006-09-12 12:29:43 |
Access level: | the public | Released: | 2005-09-22 14:53:42 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
14608. | S. R. Westrop. 1986. Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta. Palaeontographica Canadiana 3:1-179 [S. Peters/S. Peters/U. Merkel] |