Mingan Fm., basal Grand Pointe Mbr. Loc. 3,7: Chazyan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Demospongiae
- Anthaspidellidae
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Psarodictyum magnificum
Raymond and Okulitch 1940
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Anthaspidella amplia n. sp.
Rigby and Desrochers 1995
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Archaeoscyphia undulata n. sp.
Rigby and Desrochers 1995
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Archaeoscyphia pulchra
(Bassler 1927)
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Zittelella varians
Billings 1861
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Zittelella grossa n. sp.
Rigby and Desrochers 1995
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Rhopalocoelia clarkii
Raymond and Okulitch 1940
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Demospongiae
- Streptosolenidae
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Hudsonospongia minganensis
Raymond and Okulitch 1940
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Hudsonospongia irregularis
Raymond and Okulitch 1940
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Lissocoelia ramosa
Bassler 1927
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Quebec |
| Coordinates: | 50.2° North, 63.7° West (view map) | ||
| Paleocoordinates: | 26.3° South, 45.4° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician |
| 10 m.y. bin: | Ordovician 2-4 |
| Key time interval: | Chazyan |
| Age range of interval: | 470 - 457 m.y. ago |
Stratigraphy
| Formation: | Mingan | Member: | Grande Pointe |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | dolomitic,stromatolitic lithified wackestone |
| Secondary lithology: | dolomitic lithified grainstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Environment: | open shallow subtidal |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 66135 | ||
| Authorizer: | S. Peters | Enterer: | S. Peters |
| Modifier: | S. Peters | Research group: | marine invertebrate |
| Created: | 2006-09-29 11:36:54 | Last modified: | 2024-03-31 19:20:59 |
| Access level: | the public | Released: | 2006-09-29 11:36:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 18941. | J. K. Rigby and A. Desrochers. 1995. Lower and Middle Ordovician lithistid demosponges from the Mingan Islands, Gulf of St. Lawrence, Quebec, Canada. Journal of Paleontology Memoir 69(4):1-35 [S. Peters/S. Peters] |