Caughnawaga, Quebec, Canada: Chazyan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Lichenariida
- Lichenariidae
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Lichenaria sp.
Winchell and Schuchert 1895
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Demospongiae
- Anthaspidellidae
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Zittelella sp.
Ulrich and Everett 1889
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unclassified
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Pelmatozoa indet.
Leuckart 1848
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| Cystoidea? | ||||||||||
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Stenolaemata
- Trepostomata
- Trematoporidae
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Batostoma sp.
Ulrich 1882
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unclassified
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Trypanites sp.
Mägdefrau 1932
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Quebec |
| Coordinates: | 45.4° North, 73.7° West (view map) | ||
| Paleocoordinates: | 27.4° South, 54.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician |
| 10 m.y. bin: | Ordovician 2-4 |
| Key time interval: | Chazyan |
| Age range of interval: | 470.00000 - 457.00000 m.y. ago |
Stratigraphy
| Formation: | Laval |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified bindstone | ||
| Includes fossils? | Y | ||
| Lithology description: < 1 m thick, < 0.5. m wide patch reefs of cemented bryozoans, corals and pelmatozoans | |||
| Environment: | reef, buildup or bioherm | Tectonic setting: | cratonic basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Bioerosion: | occasional |
| Encrustation: | extreme |
Collection methods and comments
| Collection methods: | peel or thin section,field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Also known as: | Reef 1396 | ||
| Database number: | 45290 | ||
| Authorizer: | W. Kiessling | Enterer: | W. Kiessling |
| Modifier: | W. Kiessling | Research group: | marine invertebrate |
| Created: | 2004-10-19 06:01:21 | Last modified: | 2024-03-31 19:20:59 |
| Access level: | the public | Released: | 2004-10-19 06:01:21 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11780. | B. R. Pratt. 1989. Small early Middle Ordovician patch reefs, Laval Formation (Chazy Group), Caughnawaga, Montreal area, Quebec. In H. H. J. Geldsetzer, N. P. James, and G. E. Tebbutt (eds.), Reefs, Canada and adjacent areas. Canadian Soc. Petrol. Geologists, Memoir 13:218-223 [W. Kiessling/W. Kiessling/W. Kiessling] |