BH-29: Demingian, Canada
collected by W. D. Boyce 1976-
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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| planispiral | ||||||||||
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Trilobita
- Proetida
- Hystricuridae
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Hillyardina levis
Boyce 1989
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Hystricurus deflectus
Heller 1954
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Parahystricurus smithiae
Boyce 1989
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Trilobita
- Asaphida
- Symphysurinidae
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Randaynia saundersi
Boyce 1989
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Newfoundland and Labrador |
| Coordinates: | 51.6° North, 56.0° West (view map) | ||
| Paleocoordinates: | 32.5° South, 50.7° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Stage: | Tremadocian | 10 m.y. bin: | Ordovician 1 |
| Key time interval: | Demingian | Trilobite zone: | Randaynia saundersi |
| Age range of interval: | 485.40000 - 482.00000 m.y. ago |
Stratigraphy
| Geological group: | St. George | Formation: | Boat Harbour | Member: | Lower |
| Local section: | Boat Harbour composite | Local bed: | 52.66-53.41 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | massive,rubbly,stromatolitic,gray lithified "reef rocks" |
| Lithology description: "stromatolitic and thrombolitic, blue-grey, rubbly weathering, massive." | |
| Environment: | peritidal |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | biostratigraphic analysis | ||
| Collectors: | W. D. Boyce | Collection dates: | 1976-87 |
Metadata
| Database number: | 106217 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2011-03-04 10:29:43 | Last modified: | 2012-10-28 01:16:56 |
| Access level: | the public | Released: | 2011-03-04 10:29:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 35403. | W. D. Boyce. 1989. Early Ordovician trilobite faunas of the Boat Harbour and Catoche Formations (St. George Group) in the Boat-Harbour-Cape Norman area, Great Northern Peninsula, western Newfoundland. Geological Survey Branch, Department of Mines and Energy, Newfoundland and Labrador, Report 89-2 1-168 [M. Hopkins/M. Hopkins] |