Plourde Quarry, north of Chicoutim: Chatfieldian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita
- Lichida
- Lichidae
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Amphilichas ottawaensis
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Trilobita
- Asaphida
- Asaphidae
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Isotelus sp.
Dekay 1824
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Trilobita
- Corynexochida
- Styginidae
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Eobronteus spp.
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Trilobita
- Corynexochida
- Illaenidae
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Bumastoides sp.
(Whittington 1954)
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Trilobita
- Phacopida
- Cheiruridae
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Ceraurus sp.
Green 1832
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Trilobita
- Phacopida
- Calymenidae
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Flexicalymene senaria
(Conrad 1841)
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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] |