22.2 km northwest of Port-Menier, at Falaise Ouest (West Cliff).: Gamachian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Schucheroceras sp.
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Anthozoa
- Sarcinulida
- Syringophyllidae
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Calapoecia sp.
Billings 1865
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Stromatoporoidea
- Labechiida
- Aulaceratidae
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Aulacera (Beatricea) undulata
Billings 1857
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Rhynchonellata
- Athyridida
- Meristellidae
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? Hindella sp.
Davidson 1882
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Rhynchonellata
- Orthida
- Hesperorthidae
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Ptychopleurella lamellosa
(Raymond 1905)
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Craniata
- Trimerellida
- Trimerellidae
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Dinobolus ellisensis
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Gastropoda
- Murchisoniina
- Phanerotrematidae
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? Lophospira papillosa
(Billings 1857)
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| recombined as Brachytomaria papillosa | |||||||
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Gastropoda
- Murchisoniina
- Subulitidae
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Subulites ellisensis
Twenhofel 1928
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Gastropoda
- Murchisoniina
- Hormotomidae
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Hormotoma gigantea
(Billings 1857)
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Trilobita
- Harpetida
- Harpetidae
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Paraharpes sp.
Whittington 1950
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| synonym of Hibbertia | |||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | Québec |
| Coordinates: | 49.8° North, 64.3° West (view map) | ||
| Paleocoordinates: | 22.7° South, 39.0° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 5 | ||
| *Period: | Late/Upper Ordovician - Early/Lower Silurian | *Epoch: | Llandoverian (minimum) | *Local age/stage: | Richmondian |
| Key time interval: | Gamachian | Other zone: | Spinachitina taugourdeaui |
| Age range of interval: | 446.00000 - 443.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Ellis Bay | Member: | Lousy Cove | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Only the upper part of Member 5 outcrops below Member 6. (Both Lousy Cove member; PJW) | |||||
Lithology and environment
| Primary lithology: | green mudstone |
| Secondary lithology: | green "shale" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "[G]reen, nodular, limestone-shale about 10 m to 12 m thick. The limestone is mainly mudstone with an increase in skeletal wackestone toward the top." | |
| 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 |
Metadata
| Also known as: | Anticosti Island, West Cliff, Ellis Bay Formation Member 5 | ||
| Database number: | 24370 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-08-05 16:35:03 | Last modified: | 2010-06-18 10:47:50 |
| Access level: | the public | Released: | 2002-08-05 16:35:03 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 6866. | C. R. Barnes, A. A. Petryk, and T. E. Bolton. 1981. Anticosti Island, Québec. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group Guidebook 1:1-24 [S. Holland/T. Hanson/S. Bruning] |