96R-14, Lower Head, Black Point, Port au Choix: Rangerian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Euomphalina
- Ophiletidae
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Lytospira angelini
(Lindström 1884)
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= Lytospira distans
Billings 1865
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Rohr et al. 2003 | |||||||||
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Gastropoda
- Euomphalina
- Macluritidae
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Maclurites ponderosus
(Billings 1865)
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| recombined as Teiichispira ponderosa | ||||||||||
| (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Newfoundland and Labrador |
| Coordinates: | 50.0° North, 57.8° West (view map) | ||
| Paleocoordinates: | 30.4° South, 45.6° West | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Stage: | Floian | 10 m.y. bin: | Ordovician 2 |
| Key time interval: | Rangerian | Brachiopod zone: | Orthidiella |
| Age range of interval: | 470.00000 - 469.10000 m.y. ago |
Stratigraphy
| Geological group: | Cow Head | Formation: | Shallow Bay | Member: | Factory Cove |
| Local section: | Lower Head | Local bed: | 0 - 0.25 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Rangerian in N. America; At Lower Head large fossiliferous blocks of light-colored limestone have been determined to be within the Whiterockian-age Orthidiella brachiopod zone (Ross and James, 1987) and are considered to be equivalent to Bed 14 of the Factory Cove Member of the Shallow Bay Formation on the Cow Head Peninsula (James and Stevens, 1986). | |||||
Lithology and environment
| Primary lithology: | peloidal,gray lithified grainstone |
| Includes fossils? | Y |
| Lithology description: The gastropods occur in light gray grainstone composed of well-sorted, sand-sized fragments of calcareous algae, micritized echinoderms, and peloids suggesting deposition in a shallow, high-energy environment. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils,difficult macrofossils |
| Collection methods: | bulk,chemical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | GSC |
Metadata
| Also known as: | block Θ of James and Stevens (1986) | ||
| Database number: | 56140 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2005-11-12 19:28:54 | Last modified: | 2020-06-01 19:56:44 |
| Access level: | the public | Released: | 2005-11-12 19:28:54 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 3818. | D. M. Rohr and E.A. Measures. 2001. Middle Ordovician (Whiterockian) gastropods of western Newfoundland: Macluritoidea and Euomphaloidea. Journal of Paleontology 75(2):284-294 [S. Holland/S. Holland/P. Wagner] |
Secondary references:
| 15127 | D. M. Rohr, W.D. Boyce, and I. Knight. 2003. Ordovician gastropods from Western Newfoundland. Current Research (2003) Newfoundland Department of Mines and Energy Geological Survey 2003:127-136 [P. Wagner/P. Wagner] |