BH-47: Jeffersonian, 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, high-spired | ||||||||||
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Cephalopoda
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Cephalopoda indet.
Cuvier 1797
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unclassified
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Brachiopoda indet.
Cuvier 1805
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Trilobita
- Asaphida
- Symphysurinidae
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Randaynia langdoni n. sp.
Boyce 1989
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Trilobita
- Proetida
- Hystricuridae
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Hystricurus crassilimbatus
Poulsen 1937
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Trilobita
- Proetida
- Bathyuridae
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Benthamaspis hintzei
Boyce 1989
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| synonym of Benthamaspis conica | ||||||||||
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Strigigenalis brevicaudata
Boyce 1989
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Peltabellia crassimarginata
(Cullison 1944)
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| recombined as Strigigenalis crassimarginata | ||||||||||
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Peltabellia knighti
Boyce 1983
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| recombined as Strigigenalis knighti | ||||||||||
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Bolbocephalus stevensi
Boyce 1989
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| recombined as Strigigenalis stevensi | ||||||||||
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Bolbocephalus convexus
(Billings 1865)
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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: | 31.2° South, 47.7° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| 10 m.y. bin: | Ordovician 1-2 | ||
| Key time interval: | Jeffersonian | Trilobite zone: | Strigigenalis brevicaudata |
| Age range of interval: | 485.40000 - 470.00000 m.y. ago |
Stratigraphy
| Geological group: | St. George | Formation: | Boat Harbour | Member: | Barbace Cove |
| Local section: | Boat Harbour composite | Local bed: | 74.34-75.89 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | stromatolitic,gray lithified "reef rocks" |
| Lithology description: "stromatolitic, dark blue-gray. Mounds large, isolated, steep-sided, circular to slightly elliptical...mound interfill consists of lime mudstone, wackestone, packstone, and grainstone, slightly lighter in color than mounds, thin-bedded. Minor thin horizons of lime packstone and grainstone near base of bed." | |
| 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: | 106229 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 2011-03-04 11:21:41 | Last modified: | 2012-10-28 01:16:56 |
| Access level: | the public | Released: | 2011-03-04 11:21:41 |
| 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] |