Plourde Quarry, north of Chicoutim: Chatfieldian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Lichida - Lichidae
Amphilichas ottawaensis
Trilobita - Asaphida - Asaphidae
Isotelus sp. Dekay 1824
Trilobita - Corynexochida - Styginidae
Eobronteus spp.
Trilobita - Corynexochida - Illaenidae
Bumastoides sp. (Whittington 1954)
Trilobita - Phacopida - Cheiruridae
Ceraurus sp. Green 1832
Trilobita - Phacopida - Calymenidae
Flexicalymene senaria (Conrad 1841)
recombined as Flexicalymene (Flexicalymene) senaria
see common names

Geography
Country:Canada State/province:Québec
Coordinates: 48.5° North, 71.1° West (view map)
Paleocoordinates:24.3° South, 47.6° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4
Key time interval:Chatfieldian Conodont zone: Plectodina tenuis
Age range of interval:460.90000 - 449.50000 m.y. ago
Stratigraphy
Formation:Simard Member:Unit 2
Local section:Plourde quarry Local bed:13.6 - 22.75 m
Local order:top to bottom
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:gray,yellow sandy wackestone
Secondary lithology: "shale"
Includes fossils?Y
Lithology description: Calcilutite; light gray; forming a single bed, with quartz and feldspar sand grains forming up to 10%
Environment:carbonate indet.
Geology comments: Environmental call by T. Hanson.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:GSC
Taxonomic list comments:Tetradium spp. very abundant (Tetradium thickets of Harland et al. 1987)
Metadata
Database number:192336
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2018-03-23 15:53:47 Last modified:2018-04-04 12:52:15
Access level:the public Released:2018-03-23 15:53:47
Creative Commons license:CC BY
Reference information

Primary reference:

65081. S. Desbiens and P. J. Lespérance. 1989. Stratigraphy of the Ordovician of the Lac Saint-Jean and Chicoutimi outliers, Quebec. Canadian Journal of Earth Sciences 26(6):1185-1202 [P. Wagner/P. Wagner]