A0084. About 1 km southeast of Cap de Ia Vache-qui-Pisse (Junction Cliff): Richmondian, Canada
collected by P. Copper
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Hesperorthidae
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Barbarorthis laurentina
(Billings 1857)
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Jin and Zhan 2008 | ||||||
| recombined as Hesperorthis laurentina | |||||||
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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
- Plectorthidae
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Hebertella maria
(Billings 1862)
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Jin and Zhan 2008 | ||||||
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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
- Dalmanellidae
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Onniella tricapitata
Jin and Zhan 2008
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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
- Athyridida
- Meristellidae
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Hindella umbonata
(Billings 1862)
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Jin and Zhan 2008 | ||||||
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Rhynchonellata
- Pentamerida
- Parastrophinidae
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Parastrophinella reversa
(Billings 1857)
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Jin and Copper 2000 | ||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Coolinia gamachiana
(Twenhofel 1928)
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91 specimens | ||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Eochonetes glabra
(Shaler 1865)
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210 specimens | ||||||
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Thaerodonta glabra
(Shaler 1865)
|
Jin and Zhan 2008 | ||||||
| recombined as Eochonetes glabra | |||||||
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Sowerbyella sp.
Jones 1928
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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 | |||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | Quebec | County: | Anticosti |
| Coordinates: | 49.8° North, 64.4° West (view map) | ||||
| Paleocoordinates: | 22.7° South, 39.0° 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
Lithology and environment
| Primary lithology: | burrows lithified argillaceous,silty "shale" | ||
| Secondary lithology: | wave ripples,planar lamination,bioturbation lithified argillaceous,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 Velleda Member in its type section along the north-east coast consists of about 10 m of laminated siltstone and claystone, laminated to thin-bedded, fine and very fine sand-stone, with minor coarse sandstone and nodular micrite. In the western sections, the member is 15 m thick and is dominated by interbedded massive to laminated and thin-bedded micrites, calcareous mudstones, and grainstones. Individual micrite beds are typically 3 to 15 cm thick and have a sharp, planar base overlain by a thin layer of broken fossils. This basal lag is overlain by massive to weakly laminated micrite(floatstone), which appears to be partially bioturbated. Chondrites burrows are common, commonly forming 2% to 5% of the rock. The upper surfaces of the micrites, and parts of the overlying calcareous mudstones, are pitted and burrowed. The lateral continuity of individual beds is high (tens of metres) although some thinning and thickening are evident along strike. Larger scale architectural elements, including channels and symmetrical, draped waveforms are apparent in the cliff face and in tidal-flat exposures." | |||
| 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: | 158504 | ||
| Authorizer: | S. Finnegan, P. Wagner | Enterer: | S. Finnegan, P. Wagner |
| Modifier: | P. Wagner | ||
| Created: | 2014-07-21 16:00:06 | Last modified: | 2018-03-13 12:57:20 |
| Access level: | the public | Released: | 2014-07-21 16:00:06 |
| 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] | |
| 53345 | J. Jin and P. Copper. 2000. Late Ordovician and Early Silurian pentamerid brachiopods from Anticosti Island, Québec, Canada. Palaeontographica Canadiana 18:1-140 [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] |