Lake Simcoe Area, Ontario, Queenston Formation: Ashgill, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Myalinida - Ambonychiidae
Byssonychia radiata (Hall 1847)
synonym of Byssonychia radiata
[entered as Byssonichia radiata]
Bivalvia - Ostreida - Pterineidae
Pterinea demissa (Conrad 1842)
Rhynchonellata - Atrypida - Anazygidae
Zygospira meafordensis Foerste 1924
Stenolaemata - Trepostomata - Batostomellidae
Bythopora delicatula
Ostracoda - Beyrichicopida - Drepanellidae
Drepanella canadensis
? Drepanella striatomarginata
Ostracoda - Leperditellocopida - Primitiidae
Primitia lativia Ulrich 1889
Ostracoda - Leperditicopida - Leperditiidae
Leperditia caecigena Miller 1881
Ostracoda - Palaeocopida - Leperditellidae
Leperditella cf. glabra
see common names

Geography
Country:Canada State/province:Ontario
Coordinates: 44.6° North, 80.6° West (view map)
Paleocoordinates:23.0° South, 52.1° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 5
*Period:Late/Upper Ordovician *Epoch:Ashgillian
*Local age/stage:Richmondian
Key time interval:Ashgill
Age range of interval:449.60000 - 443.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Queenston
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:micaceous,green,red "shale"
Secondary lithology:wave ripples,gray "limestone"
Includes fossils?Y
Includes fossils?Y
Lithology description: Brick-red, micaceous and arenaceous shales, clay shales, red-mottled-green in the lowest few feet. Local greenish grey or reddish ripple-marked limestone and arenaceous and micaceous shales.
Environment:deltaic indet.
Geology comments: Deltaic estuarine shale facies.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:26305
Authorizer:S. Holland Enterer:T. Hanson
Modifier:J. Alroy Research group:marine invertebrate
Created:2002-10-11 20:08:01 Last modified:2005-02-15 19:59:09
Access level:the public Released:2002-10-11 20:08:01
Creative Commons license:CC BY
Reference information

Primary reference:

7251. B. A. Liberty. 1969. Palaeozoic geology of the Lake Simcoe Area, Ontario. Geological Survey of Canada Memoirs (355)1-201 [S. Holland/T. Hanson/T. Hanson]