Missisquoia depressa Subzone: Trempealeauan, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Corynexochida - Missisquoiidae
Missisquoia depressa Stitt 1971
Trilobita - Ptychopariida - Plethopeltidae
Plethometopus hastatus n. sp.
see common names

Geography
Country:Canada State/province:Alberta
Coordinates: 51.5° North, 116.2° West (view map)
Paleocoordinates:2.8° South, 75.9° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cambrian Epoch: Furongian
10 m.y. bin: Cambrian 5
Key time interval: Trempealeauan
Age range of interval: 489.2 - 485.4 m.y. ago
Stratigraphy
Formation:Survey Peak Member:basal silty
Stratigraphic resolution:group of beds
Stratigraphy comments: Base of Survey Peak Fm. in Basal Silty Member, subzone only 5m thick
Lithology and environment
Primary lithology: lithified calcareous "shale"
Secondary lithology:stromatolitic,intraclastic lithified "limestone"
Includes fossils?Y
Includes fossils?Y
Lithology description: Basal silty member consists of 40 to 50 m of calcareous shales with interbedded intrarudites, calcarenites, and clacisiltites; a few algal buildups are present in lower portion
Environment:deep 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:54120
Authorizer:S. Peters Enterer:S. Peters
Modifier:S. Peters Research group:marine invertebrate
Created:2005-09-23 08:00:11 Last modified:2005-09-23 13:46:13
Access level:the public Released:2005-09-23 08:00:11
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]