A0647. Rivière Trois Milles: Richmondian, Canada
collected by P. Copper
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata
- Pentamerida
- Parastrophinidae
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Parastrophinella sp.
Schuchert and Cooper 1931
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Mendacella uberis
(Billings 1866)
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Jin and Zhan 2008 | 2 specimens | |||||
Rhynchonellata
- Orthida
- Platystrophiidae
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Vinlandostrophia regularis
(Shaler 1865)
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Jin and Zhan 2008 | 18 specimens | |||||
Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella maria
(Billings 1862)
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Jin and Zhan 2008 | 2 specimens | |||||
Rhynchonellata
- Orthida
- Plaesiomyidae
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Plaesiomys anticostiensis
(Shaler 1865)
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Jin and Zhan 2008 | 697 specimens | |||||
recombined as Dinorthis anticostiensis | |||||||
Rhynchonellata
- Atrypida
- Atrypinidae
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Eospirigerina sp.
Schuchert and Cooper 1930
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Rhynchonellata
- Athyridida
- Meristellidae
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Hindella umbonata
(Billings 1862)
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Strophomenata
- Strophomenida
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Archeochonetes muirwoodae
Racheboeuf and Copper 1986
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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 | |||||||
Strophomenata
- Strophomenida
- Sowerbyellidae
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Sowerbyella (Eochonetes) sp.
Reed 1917
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Eochonetes glabra
(Shaler 1865)
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210 specimens | ||||||
Strophomenata
- Billingsellida
- Clitambonitidae
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Vellamo diversa
(Shaler 1865)
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Jin and Zhan 2008 | 173 specimens | |||||
Strophomenata
- Orthotetida
- Chilidiopsidae
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Coolinia gamachiana
(Twenhofel 1928)
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see common names |
Geography
Country: | Canada | State/province: | Quebec |
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 A647 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: | gray lithified calcareous lime mudstone | ||
Secondary lithology: | gray lithified carbonaceous sandstone | ||
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 Ellis Bay Formation consists of 52 to 72 m of predominantly grey strata that pass from micritic limestones with abundant sets of calcareous mudstone layers at the west end of the island, to micrites plus mixed carbonate-siliciclastic sandstones at the east end (Long and Copper 1987b). The formation marks a period of faunal change from typical Ordovician to Silurian fauna and includes the type section of the Gamachian in North America. An exclusive Hirnantian age for the formation is disputed by some authors, who believe that most of the formation is of latest Rawtheyan age and that only the uppermost one or two members are Hirnantian (Brenchley et al. 1994; Fortey et al. 1995; Underwood et al. 1997). The formation has been formally divided into six members by Long and Copper (1987a)." | |||
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: | A425 | ||
Database number: | 158864 | ||
Authorizer: | S. Finnegan | Enterer: | S. Finnegan |
Modifier: | P. Wagner | ||
Created: | 2014-07-22 18:30:35 | Last modified: | 2018-03-13 15:38:48 |
Access level: | the public | Released: | 2014-07-22 18:30:35 |
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] |