A1504. Chemin 4 between Riviére Cailloux and Riviére Laloutre: Richmondian, Canada
collected by P. Copper
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata
- Orthida
- Rhipidomellidae
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Mendacella uberis
(Billings 1866)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Onniella tricapitata
Jin and Zhan 2008
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella maria
(Billings 1862)
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Plaesiomys anticostiensis
(Shaler 1865)
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recombined as Dinorthis anticostiensis | |||||||
Rhynchonellata
- Orthida
- Hesperorthidae
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Barbarorthis laurentina
(Billings 1857)
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recombined as Hesperorthis laurentina | |||||||
Rhynchonellata
- Atrypida
- Atrypinidae
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Eospirigerina sp.
Schuchert and Cooper 1930
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Hypsiptycha anticostiensis
(Billings 1862)
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Rhynchonellata
- Athyridida
- Meristellidae
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Hindella umbonata
(Billings 1862)
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Strophomenata
- Strophomenida
- Strophomenidae
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Leptaena quadrilatera
(Logan 1863)
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original and current combination Strophomena rhomboidalis | |||||||
Strophomenata
- Orthotetida
- Chilidiopsidae
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Coolinia gamachiana
(Twenhofel 1928)
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see common names |
Geography
Country: | Canada | State/province: | Quebec | County: | Anticosti Island |
Coordinates: | 49.6° North, 63.2° West (view map) | ||||
Paleocoordinates: | 23.1° South, 38.2° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
Key time interval: | Richmondian | Other zone: | Hercochitina crickmayi |
Age range of interval: | 449.80000 - 446.00000 m.y. ago |
Stratigraphy
Formation: | Vaureal | Member: | Grindstone | ||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Same collection names are used by Jin 1989, Jin and Zhan 2008, and Li and Copper 2006. Paraorthograptus pacificus zone. |
Lithology and environment
Primary lithology: | bioturbation,coarse lithified sandy,calcareous lime mudstone | ||
Lithology description: Member description taken from 2007 Long. Tempestite frequency curves: a key to Late Ordovician and Early Silurian subsidence, sea-level change, and orbital forcing in the Anticosti foreland basin, Quebec, Canada. Can. J. Earth Sci. Vol. 44, 413-431. "The Grindstone Member, at its type section on the north-east coast of Anticosti Island, consists of >14 m of lami-nated to thin-bedded, very fine sandstones (subfeldspathic to feldspathic bioarenites) and minor laminated calcareous mudstones. These mixed siliciclastic–carbonate sandstones appear to be restricted to the east end of the island; within 15 km of the type section they pass into sandy limestones. To the west, at Vauréal Falls, they are dominated by highly bioturbated thin-bedded micrites, interbedded with thin to thick beds of calcarenite of coarse sand to granule grade. At the west end of the island the member consists of 21 m of predominantly laminated to thin-bedded planar to wavy laminate (irregular, subnodular) micrites, with abundant bioturbation. Grainstones are rare and are typically discontinuous lenticular." | |||
Environment: | carbonate indet. | Tectonic setting: | foreland basin |
Taphonomy
Modes of preservation: | body,original calcite |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | bulk,field collection |
Reason for describing collection: | taxonomic analysis |
Collectors: | P. Copper |
Taxonomic list comments:Brachiopods only. |
Metadata
Database number: | 163704 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | P. Wagner | ||
Created: | 2014-11-08 17:27:23 | Last modified: | 2018-03-13 13:06:37 |
Access level: | the public | Released: | 2014-11-08 17:27:23 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
44576. | J. Jin and R. Zhan. 2008. Late Ordovician Orthide and Billingsellide Brachiopods from Anticosti Island, Eastern Canada: Diversity Change Through Mass Extinction. National Research Council of Canada Monograph Series [S. Finnegan/S. Finnegan] |
Secondary references:
65007 | P. Copper, J. Jin, and A. Desrochers. 2013. The Ordovician-Silurian boundary (late Katian-Hirnantian) of western Anticosti Island: revised stratigraphy and benthic megafaunal correlations. Stratigraphy 10(4):213-227 [P. Wagner/P. Wagner] |