A0425. Ruisseau Trois Milles.: Richmondian, Canada
collected by P. Copper
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Athyridida
- Meristellidae
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Hindella umbonata
(Billings 1862)
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Plaesiomys anticostiensis
(Shaler 1865)
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Jin and Zhan 2008 | ||||||
| recombined as Dinorthis anticostiensis | |||||||
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Rhynchonellata
- Orthida
- Platystrophiidae
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Vinlandostrophia regularis
(Shaler 1865)
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella maria
(Billings 1862)
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Mendacella uberis
(Billings 1866)
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Atrypida
- Atrypinidae
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Eospirigerina sp.
Schuchert and Cooper 1930
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Pentamerida
- Parastrophinidae
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Parastrophinella sp.
Schuchert and Cooper 1931
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Jin and Zhan 2008 | ||||||
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Strophomenata
- Billingsellida
- Clitambonitidae
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Vellamo diversa
(Shaler 1865)
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Jin and Zhan 2008 | ||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Coolinia gamachiana
(Twenhofel 1928)
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Jin and Zhan 2008 | ||||||
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Strophomenata
- Strophomenida
- Strophomenidae
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Leptaena quadrilatera
(Logan 1863)
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120 specimens | ||||||
| original and current combination Strophomena rhomboidalis | |||||||
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Strophomenata
- Strophomenida
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Archeochonetes muirwoodae
Racheboeuf and Copper 1986
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Jin and Zhan 2008 | ||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Thaerodonta glabra
(Shaler 1865)
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Jin and Zhan 2008 | ||||||
| recombined as Eochonetes glabra | |||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | Quebec | County: | Anticosti Island |
| Coordinates: | 49.8° North, 64.3° West (view map) | ||||
| Paleocoordinates: | 22.7° South, 38.9° 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 | Graptolite zone: | Paraorthograptus pacificus |
| Age range of interval: | 449.80000 - 446.00000 m.y. ago |
Stratigraphy
| Formation: | Vaureal | Member: | Grindstone | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Collection A425 of Dewing 1999. Same collection names are used by Jin 1989, Jin and Zhan 2008, and Li and Copper 2006. Hercochitina crickmayi 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
| Also known as: | A647 | ||
| Database number: | 158576 | ||
| Authorizer: | S. Finnegan, P. Wagner | Enterer: | S. Finnegan, P. Wagner |
| Modifier: | P. Wagner | ||
| Created: | 2014-07-21 19:28:33 | Last modified: | 2018-03-13 13:42:50 |
| Access level: | the public | Released: | 2014-07-21 19:28:33 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 51869. | K. Dewing. 1999. Late Ordovician and Early Silurian strophomenid brachiopods of Anticosti Island, Quebec, Canada. In A. D. McCracken (ed.), Palaeontographica Canadiana 17:1-143 [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] | |
| 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] |