Green Point Section. Bed 19: Trempealeauan, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Corynexochida
- Illaenuridae
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Tatonaspis sp.
Kobayashi 1935
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James and Stevens 1986 | ||||||
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Trilobita
- Asaphida
- Nileidae
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Symphysurina cleora
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James and Stevens 1986 | ||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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? Nanorthis hamburgensis
(Walcott 1884)
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James and Stevens 1986 | ||||||
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Conodonta
- Protopanderodontida
- Oneotodontidae
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Teridontus nakamurai
(Nogami 1967)
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James and Stevens 1986 | ||||||
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Conodonta
- Amphigeisinidae
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Phakelodus tennis
|
James and Stevens 1986 | ||||||
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Conodonta
- Proconodontida
- Cordylodontidae
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Cordylodus caboti
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Cordylodus deflexus
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James and Stevens 1986 | ||||||
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Cordylodus primitivus
|
James and Stevens 1986 | ||||||
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Cordylodus proavus
Müller 1959
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James and Stevens 1986 | ||||||
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Eoconodontus notchpeakensis
(Miller 1969)
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James and Stevens 1986 | ||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | Newfoundland and Labrador |
| Coordinates: | 49.7° North, 58.0° West (view map) | ||
| Paleocoordinates: | 6.8° North, 86.6° West (Wright 2013) | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| Key time interval: | Trempealeauan | Conodont zone: | Cordylodus proavus |
| Age range of interval: | 489.2 - 485.4 m.y. ago |
Stratigraphy
| Geological group: | Cow Head | Formation: | Green Point | Member: | Martin Point |
| Local section: | Green Point | Local bed: | 156.4 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified calcareous conglomerate |
| Secondary lithology: | dolomitic,green mudstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: 90% clasts, 3/4 tabular (average 5 cm, largest 20 cm) , green dolomite mudstone matrix, irregular upper surface. | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: Probably W. J. Iams. REPOSITORY: National Type Collection of Invertebrate and Plant Fossils, Geological Survey of Canada. | |
| Taxonomic list comments:COVERAGE: Exhaustive for radiolarians and with characteristic condonts. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications. | |
Metadata
| Database number: | 203836 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | micropaleontology |
| Created: | 2019-08-25 20:22:57 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2019-08-25 20:22:57 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 69846. | R. A. Cooper, G. S. Nowlan, and S. H. Williams. 2001. Global Stratotype Section and Point for base of the Ordovician System. Episodes 24(1):19-28 [P. Wagner/P. Wagner] |
Secondary references:
| 35329 | N. P. James and R. K. Stevens. 1986. Stratigraphy and correlation of the Cambro-Ordovician Cow Head Group, western Newfoundland. Geological Survey of Canada Bulletin 366:1-143 [M. Hopkins/M. Hopkins] |